Home / 87,645.20-131,363.98-40,220.31

Finding the Fourth Proportional to 87,645.20, 131,363.98 and 40,220.31

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Solution

The fourth proportional to 87,645.20, 131,363.98 and 40,220.31 is: 60,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.20 : 131,363.98 = 40,220.31 : x
  2. Step 2: Convert to fraction form
    87,645.20/131,363.98 = 40,220.31/x
  3. Step 3: Cross multiply
    87,645.20x = 131,363.98 × 40,220.31
  4. Step 4: Simplify right side
    87,645.20x = 5,283,500,390.50
  5. Step 5: Solve for x
    x = 5,283,500,390.50/87,645.20
  6. Step 6: Final answer
    x = 60,282.83

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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.