Home / 87,559.28-131,355.32-28,387.26

Finding the Fourth Proportional to 87,559.28, 131,355.32 and 28,387.26

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Solution

The fourth proportional to 87,559.28, 131,355.32 and 28,387.26 is: 42,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,559.28 : 131,355.32 = 28,387.26 : x
  2. Step 2: Convert to fraction form
    87,559.28/131,355.32 = 28,387.26/x
  3. Step 3: Cross multiply
    87,559.28x = 131,355.32 × 28,387.26
  4. Step 4: Simplify right side
    87,559.28x = 3,728,817,638.97
  5. Step 5: Solve for x
    x = 3,728,817,638.97/87,559.28
  6. Step 6: Final answer
    x = 42,586.21

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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.