Home / 87,511.80-131,195.70-37,630.20

Finding the Fourth Proportional to 87,511.80, 131,195.70 and 37,630.20

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Solution

The fourth proportional to 87,511.80, 131,195.70 and 37,630.20 is: 56,414.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,511.80 : 131,195.70 = 37,630.20 : x
  2. Step 2: Convert to fraction form
    87,511.80/131,195.70 = 37,630.20/x
  3. Step 3: Cross multiply
    87,511.80x = 131,195.70 × 37,630.20
  4. Step 4: Simplify right side
    87,511.80x = 4,936,920,430.14
  5. Step 5: Solve for x
    x = 4,936,920,430.14/87,511.80
  6. Step 6: Final answer
    x = 56,414.34

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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.