Home / 87,471.60-131,174.46-28,291.38

Finding the Fourth Proportional to 87,471.60, 131,174.46 and 28,291.38

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Solution

The fourth proportional to 87,471.60, 131,174.46 and 28,291.38 is: 42,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,471.60 : 131,174.46 = 28,291.38 : x
  2. Step 2: Convert to fraction form
    87,471.60/131,174.46 = 28,291.38/x
  3. Step 3: Cross multiply
    87,471.60x = 131,174.46 × 28,291.38
  4. Step 4: Simplify right side
    87,471.60x = 3,711,106,494.15
  5. Step 5: Solve for x
    x = 3,711,106,494.15/87,471.60
  6. Step 6: Final answer
    x = 42,426.42

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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.