Finding the Fourth Proportional to 72,882.18, 109,257.66 and 26,124.12
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Solution
The fourth proportional to 72,882.18, 109,257.66 and 26,124.12 is: 39,162.66
Step by Step Solution
- Step 1: Write the proportion equation
72,882.18 : 109,257.66 = 26,124.12 : x - Step 2: Convert to fraction form
72,882.18/109,257.66 = 26,124.12/x - Step 3: Cross multiply
72,882.18x = 109,257.66 × 26,124.12 - Step 4: Simplify right side
72,882.18x = 2,854,260,220.76 - Step 5: Solve for x
x = 2,854,260,220.76/72,882.18 - Step 6: Final answer
x = 39,162.66
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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.