Home / 87,651.20-131,428.20-37,722.80

Finding the Fourth Proportional to 87,651.20, 131,428.20 and 37,722.80

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Solution

The fourth proportional to 87,651.20, 131,428.20 and 37,722.80 is: 56,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651.20 : 131,428.20 = 37,722.80 : x
  2. Step 2: Convert to fraction form
    87,651.20/131,428.20 = 37,722.80/x
  3. Step 3: Cross multiply
    87,651.20x = 131,428.20 × 37,722.80
  4. Step 4: Simplify right side
    87,651.20x = 4,957,839,702.96
  5. Step 5: Solve for x
    x = 4,957,839,702.96/87,651.20
  6. Step 6: Final answer
    x = 56,563.28

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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.