Finding the Fourth Proportional to 71,916.96, 107,586.36 and 62,160.96
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Solution
The fourth proportional to 71,916.96, 107,586.36 and 62,160.96 is: 92,991.58
Step by Step Solution
- Step 1: Write the proportion equation
71,916.96 : 107,586.36 = 62,160.96 : x - Step 2: Convert to fraction form
71,916.96/107,586.36 = 62,160.96/x - Step 3: Cross multiply
71,916.96x = 107,586.36 × 62,160.96 - Step 4: Simplify right side
71,916.96x = 6,687,671,420.51 - Step 5: Solve for x
x = 6,687,671,420.51/71,916.96 - Step 6: Final answer
x = 92,991.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.