Finding the Third Proportional to 18,363.75 and 39,642.75
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Solution
The third proportional to 18,363.75 and 39,642.75 is: 85,578.80
Step by Step Solution
- Step 1: Write the proportion equation
18,363.75 : 39,642.75 = 39,642.75 : x - Step 2: Convert to fraction form
18,363.75/39,642.75 = 39,642.75/x - Step 3: Cross multiply
18,363.75x = 39,642.75 × 39,642.75 - Step 4: Simplify right side
18,363.75x = 1,571,547,627.56 - Step 5: Solve for x
x = 1,571,547,627.56/18,363.75 - Step 6: Final answer
x = 85,578.80
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.