Home / 87,337.85-131,006.77-69,725.21

Finding the Fourth Proportional to 87,337.85, 131,006.77 and 69,725.21

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Solution

The fourth proportional to 87,337.85, 131,006.77 and 69,725.21 is: 104,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,337.85 : 131,006.77 = 69,725.21 : x
  2. Step 2: Convert to fraction form
    87,337.85/131,006.77 = 69,725.21/x
  3. Step 3: Cross multiply
    87,337.85x = 131,006.77 × 69,725.21
  4. Step 4: Simplify right side
    87,337.85x = 9,134,473,720.32
  5. Step 5: Solve for x
    x = 9,134,473,720.32/87,337.85
  6. Step 6: Final answer
    x = 104,587.81

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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.