Finding the Fourth Proportional to 71,557.13, 107,343.05 and 18,966.62
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Solution
The fourth proportional to 71,557.13, 107,343.05 and 18,966.62 is: 28,451.88
Step by Step Solution
- Step 1: Write the proportion equation
71,557.13 : 107,343.05 = 18,966.62 : x - Step 2: Convert to fraction form
71,557.13/107,343.05 = 18,966.62/x - Step 3: Cross multiply
71,557.13x = 107,343.05 × 18,966.62 - Step 4: Simplify right side
71,557.13x = 2,035,934,838.99 - Step 5: Solve for x
x = 2,035,934,838.99/71,557.13 - Step 6: Final answer
x = 28,451.88
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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.