Finding the Fourth Proportional to 87,457.18, 131,186.58 and 25,127.68
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Solution
The fourth proportional to 87,457.18, 131,186.58 and 25,127.68 is: 37,691.75
Step by Step Solution
- Step 1: Write the proportion equation
87,457.18 : 131,186.58 = 25,127.68 : x - Step 2: Convert to fraction form
87,457.18/131,186.58 = 25,127.68/x - Step 3: Cross multiply
87,457.18x = 131,186.58 × 25,127.68 - Step 4: Simplify right side
87,457.18x = 3,296,414,402.53 - Step 5: Solve for x
x = 3,296,414,402.53/87,457.18 - Step 6: Final answer
x = 37,691.75
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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.