Home / 87,717.20-131,577.04-28,553.18

Finding the Fourth Proportional to 87,717.20, 131,577.04 and 28,553.18

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Solution

The fourth proportional to 87,717.20, 131,577.04 and 28,553.18 is: 42,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.20 : 131,577.04 = 28,553.18 : x
  2. Step 2: Convert to fraction form
    87,717.20/131,577.04 = 28,553.18/x
  3. Step 3: Cross multiply
    87,717.20x = 131,577.04 × 28,553.18
  4. Step 4: Simplify right side
    87,717.20x = 3,756,942,906.99
  5. Step 5: Solve for x
    x = 3,756,942,906.99/87,717.20
  6. Step 6: Final answer
    x = 42,830.17

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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.