Home / 87,753.85-131,582.15-40,981.21

Finding the Fourth Proportional to 87,753.85, 131,582.15 and 40,981.21

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Solution

The fourth proportional to 87,753.85, 131,582.15 and 40,981.21 is: 61,449.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,753.85 : 131,582.15 = 40,981.21 : x
  2. Step 2: Convert to fraction form
    87,753.85/131,582.15 = 40,981.21/x
  3. Step 3: Cross multiply
    87,753.85x = 131,582.15 × 40,981.21
  4. Step 4: Simplify right side
    87,753.85x = 5,392,394,858.58
  5. Step 5: Solve for x
    x = 5,392,394,858.58/87,753.85
  6. Step 6: Final answer
    x = 61,449.10

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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.