Question

Find the value of $x$ in the following, if the given number is in proportion.

14,42,$x$ and 75

Answer 1

Find the value of $x$:

Given 14,42,$x$ and 75 are in proportion.

So, $14:42::x:75$

$$\begin{gathered} \Rightarrow \frac{14}{42}=\frac{x}{75} \\ \Rightarrow 42x=14\times 75 \\ \Rightarrow x=\frac{14\times 75}{42} \\ \Rightarrow x=25 \end{gathered}$$

Hence, the value of $x$ is $25$.