Center table not to center of page

Question

Is it possible to place the center of table to 0.75 widthtext? I would like to center the table not to the center of page width but with respect to the 3/4 of page width.

\begin{table}
\begin{minipage}{0.75\linewidth}
\caption[]{cap}\label{l}
\begin{flushleft}
\begin{tabular}{lccc}
\hline\hline\noalign{\smallskip}
a&b&c&d\\
\noalign{\smallskip}\hline\noalign{\smallskip}
a&b&c&d\\
\noalign{\smallskip}\hline\noalign{\smallskip}
\end{tabular}
\end{flushleft}
\end{minipage}
\end{table}

Answer 1

You can center the tabular environment like any other text using the center-environment:

\documentclass{article}
\usepackage{showframe}

\begin{document}
\noindent\begin{minipage}{.75\linewidth}
  \begin{center}
    \begin{tabular}{lccc}
      \hline\hline\noalign{\smallskip}
      a&b&c&d\\
      \noalign{\smallskip}\hline\noalign{\smallskip}
      a&b&c&d\\
      \noalign{\smallskip}\hline\noalign{\smallskip}
    \end{tabular}
  \end{center}
\end{minipage}
\end{document}

Note: the \noindent in front of \begin{minipage} is only needed, when the minipage appears as is after a text paragraph.

Answer 2

Assuming the natural width of the tabular environment is less than 0.75\textwidth, you may achieve your formatting objective by centering the tabular environment in a minipage of width \0.75\textwidth- .

\documentclass{article}
\usepackage{showframe} % show framelnes around text block
\usepackage{tabularx}  % for tabularx environment 
\begin{document}
\noindent
\begin{minipage}{0.75\textwidth}
\centering
\begin{tabular}{|*{6}{c|}}
\hline
A & B & C & D & E & F \\
\hline
\end{tabular}
\end{minipage}%
\begin{tabularx}{0.25\textwidth}{|>{\centering\arraybackslash}X|}
\hline
abcdefhij\\
\hline
\end{tabularx}

\noindent
\begin{tabularx}{0.25\textwidth}{|>{\centering\arraybackslash}X|}
\hline
abcdefhij\\
\hline
\end{tabularx}%
\begin{tabularx}{0.25\textwidth}{|>{\centering\arraybackslash}X|}
\hline
abcdefhij\\
\hline
\end{tabularx}%
\begin{tabularx}{0.25\textwidth}{|>{\centering\arraybackslash}X|}
\hline
abcdefhij\\
\hline
\end{tabularx}%
\begin{tabularx}{0.25\textwidth}{|>{\centering\arraybackslash}X|}
\hline
abcdefhij\\
\hline
\end{tabularx}
\end{document}