Home / 87,562.36-131,372.70-28,399.96

Finding the Fourth Proportional to 87,562.36, 131,372.70 and 28,399.96

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Solution

The fourth proportional to 87,562.36, 131,372.70 and 28,399.96 is: 42,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,562.36 : 131,372.70 = 28,399.96 : x
  2. Step 2: Convert to fraction form
    87,562.36/131,372.70 = 28,399.96/x
  3. Step 3: Cross multiply
    87,562.36x = 131,372.70 × 28,399.96
  4. Step 4: Simplify right side
    87,562.36x = 3,730,979,425.09
  5. Step 5: Solve for x
    x = 3,730,979,425.09/87,562.36
  6. Step 6: Final answer
    x = 42,609.40

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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.