Home / 87,499.20-131,248.80-32,116.80

Finding the Fourth Proportional to 87,499.20, 131,248.80 and 32,116.80

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Solution

The fourth proportional to 87,499.20, 131,248.80 and 32,116.80 is: 48,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,499.20 : 131,248.80 = 32,116.80 : x
  2. Step 2: Convert to fraction form
    87,499.20/131,248.80 = 32,116.80/x
  3. Step 3: Cross multiply
    87,499.20x = 131,248.80 × 32,116.80
  4. Step 4: Simplify right side
    87,499.20x = 4,215,291,459.84
  5. Step 5: Solve for x
    x = 4,215,291,459.84/87,499.20
  6. Step 6: Final answer
    x = 48,175.20

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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.