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Finding the Fourth Proportional to 87,957.95, 131,974.29 and 43,585.55

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Solution

The fourth proportional to 87,957.95, 131,974.29 and 43,585.55 is: 65,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,957.95 : 131,974.29 = 43,585.55 : x
  2. Step 2: Convert to fraction form
    87,957.95/131,974.29 = 43,585.55/x
  3. Step 3: Cross multiply
    87,957.95x = 131,974.29 × 43,585.55
  4. Step 4: Simplify right side
    87,957.95x = 5,752,171,137.71
  5. Step 5: Solve for x
    x = 5,752,171,137.71/87,957.95
  6. Step 6: Final answer
    x = 65,396.83

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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.