Question

5:9 :: X: 72
please do explain​

Answer 1

Answer:

The value of x is 40.

Step-by-step explanation:

5:9::x:72

Product of means = Product of extremes

9x = 5 x 72 = 360

⇒ x = 360/9 = 40

Please mark me brainiest.

Answer 2

To find : the value of $x$

Given ratio : $5 : 9 :: x : 72$

Solution :

• We are given the ratio of proportion . Where , $5$ and $72$ are as extremes while $9$ and $x$ are called as mean .  
• As we can see that in the given ratio of proportion one of the ratio is missing.

• To find missing ratio we can write $5 : 9 :: x : 72$  as, $\frac{5}{9}=\frac{x}{72}$

• Transposing  like terms we get,

      $\Rightarrow \quad x=\frac{5\times 72}{9}$

• On simplifying we get,  

      $\Rightarrow x=5 \times 8 \\\Rightarrow x=40\end{array}$

Hence, value of $x$ is $40$ .

Note : value of $x$ was not given therefore after explanation we solved for the value of $x$ .