Home / 87,560.28-131,356.82-28,388.26

Finding the Fourth Proportional to 87,560.28, 131,356.82 and 28,388.26

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Solution

The fourth proportional to 87,560.28, 131,356.82 and 28,388.26 is: 42,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,560.28 : 131,356.82 = 28,388.26 : x
  2. Step 2: Convert to fraction form
    87,560.28/131,356.82 = 28,388.26/x
  3. Step 3: Cross multiply
    87,560.28x = 131,356.82 × 28,388.26
  4. Step 4: Simplify right side
    87,560.28x = 3,728,991,558.93
  5. Step 5: Solve for x
    x = 3,728,991,558.93/87,560.28
  6. Step 6: Final answer
    x = 42,587.71

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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.