Home / 87,057.18-130,542.03-40,342.86

Finding the Fourth Proportional to 87,057.18, 130,542.03 and 40,342.86

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Solution

The fourth proportional to 87,057.18, 130,542.03 and 40,342.86 is: 60,494.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,057.18 : 130,542.03 = 40,342.86 : x
  2. Step 2: Convert to fraction form
    87,057.18/130,542.03 = 40,342.86/x
  3. Step 3: Cross multiply
    87,057.18x = 130,542.03 × 40,342.86
  4. Step 4: Simplify right side
    87,057.18x = 5,266,438,840.41
  5. Step 5: Solve for x
    x = 5,266,438,840.41/87,057.18
  6. Step 6: Final answer
    x = 60,494.02

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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.