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Finding the Fourth Proportional to 57,500.80, 86,251.20 and 34,115.20

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Solution

The fourth proportional to 57,500.80, 86,251.20 and 34,115.20 is: 51,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,500.80 : 86,251.20 = 34,115.20 : x
  2. Step 2: Convert to fraction form
    57,500.80/86,251.20 = 34,115.20/x
  3. Step 3: Cross multiply
    57,500.80x = 86,251.20 × 34,115.20
  4. Step 4: Simplify right side
    57,500.80x = 2,942,476,938.24
  5. Step 5: Solve for x
    x = 2,942,476,938.24/57,500.80
  6. Step 6: Final answer
    x = 51,172.80

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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.