Home / 87,331.57-131,022.87-28,165.93

Finding the Fourth Proportional to 87,331.57, 131,022.87 and 28,165.93

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Solution

The fourth proportional to 87,331.57, 131,022.87 and 28,165.93 is: 42,257.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.57 : 131,022.87 = 28,165.93 : x
  2. Step 2: Convert to fraction form
    87,331.57/131,022.87 = 28,165.93/x
  3. Step 3: Cross multiply
    87,331.57x = 131,022.87 × 28,165.93
  4. Step 4: Simplify right side
    87,331.57x = 3,690,380,984.82
  5. Step 5: Solve for x
    x = 3,690,380,984.82/87,331.57
  6. Step 6: Final answer
    x = 42,257.12

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1.5x scale

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.