Home / 87,550.40-131,325.60-32,139.20

Finding the Fourth Proportional to 87,550.40, 131,325.60 and 32,139.20

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Solution

The fourth proportional to 87,550.40, 131,325.60 and 32,139.20 is: 48,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,550.40 : 131,325.60 = 32,139.20 : x
  2. Step 2: Convert to fraction form
    87,550.40/131,325.60 = 32,139.20/x
  3. Step 3: Cross multiply
    87,550.40x = 131,325.60 × 32,139.20
  4. Step 4: Simplify right side
    87,550.40x = 4,220,699,723.52
  5. Step 5: Solve for x
    x = 4,220,699,723.52/87,550.40
  6. Step 6: Final answer
    x = 48,208.80

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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.