Home / 87,583.92-131,387.76-28,400.28

Finding the Fourth Proportional to 87,583.92, 131,387.76 and 28,400.28

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Solution

The fourth proportional to 87,583.92, 131,387.76 and 28,400.28 is: 42,604.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.92 : 131,387.76 = 28,400.28 : x
  2. Step 2: Convert to fraction form
    87,583.92/131,387.76 = 28,400.28/x
  3. Step 3: Cross multiply
    87,583.92x = 131,387.76 × 28,400.28
  4. Step 4: Simplify right side
    87,583.92x = 3,731,449,172.57
  5. Step 5: Solve for x
    x = 3,731,449,172.57/87,583.92
  6. Step 6: Final answer
    x = 42,604.27

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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.