Home / 87,334.28-131,167.60-54,285.29

Finding the Fourth Proportional to 87,334.28, 131,167.60 and 54,285.29

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Solution

The fourth proportional to 87,334.28, 131,167.60 and 54,285.29 is: 81,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,334.28 : 131,167.60 = 54,285.29 : x
  2. Step 2: Convert to fraction form
    87,334.28/131,167.60 = 54,285.29/x
  3. Step 3: Cross multiply
    87,334.28x = 131,167.60 × 54,285.29
  4. Step 4: Simplify right side
    87,334.28x = 7,120,471,210.29
  5. Step 5: Solve for x
    x = 7,120,471,210.29/87,334.28
  6. Step 6: Final answer
    x = 81,531.23

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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.