Question

Find the fourth proportional to
$48,12,64$

Answer 1

Ratio of 48 & 12 :- Ratio of 64 & x :-

$\frac{48}{12}=\frac{4}{1}$ $\frac{64}{x}=\frac{4}{1}$

$\Rightarrow x=\frac{64}{4}=16$