Home / 87,491.48-131,233.02-40,079.20

Finding the Fourth Proportional to 87,491.48, 131,233.02 and 40,079.20

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Solution

The fourth proportional to 87,491.48, 131,233.02 and 40,079.20 is: 60,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,491.48 : 131,233.02 = 40,079.20 : x
  2. Step 2: Convert to fraction form
    87,491.48/131,233.02 = 40,079.20/x
  3. Step 3: Cross multiply
    87,491.48x = 131,233.02 × 40,079.20
  4. Step 4: Simplify right side
    87,491.48x = 5,259,714,455.18
  5. Step 5: Solve for x
    x = 5,259,714,455.18/87,491.48
  6. Step 6: Final answer
    x = 60,116.88

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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.