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Finding the Fourth Proportional to 87,629.80, 131,452.80 and 35,028.40

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Solution

The fourth proportional to 87,629.80, 131,452.80 and 35,028.40 is: 52,545.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.80 : 131,452.80 = 35,028.40 : x
  2. Step 2: Convert to fraction form
    87,629.80/131,452.80 = 35,028.40/x
  3. Step 3: Cross multiply
    87,629.80x = 131,452.80 × 35,028.40
  4. Step 4: Simplify right side
    87,629.80x = 4,604,581,259.52
  5. Step 5: Solve for x
    x = 4,604,581,259.52/87,629.80
  6. Step 6: Final answer
    x = 52,545.84

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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.