Home / 42,721.20-63,930.60-37,234.80

Finding the Fourth Proportional to 42,721.20, 63,930.60 and 37,234.80

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Solution

The fourth proportional to 42,721.20, 63,930.60 and 37,234.80 is: 55,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,721.20 : 63,930.60 = 37,234.80 : x
  2. Step 2: Convert to fraction form
    42,721.20/63,930.60 = 37,234.80/x
  3. Step 3: Cross multiply
    42,721.20x = 63,930.60 × 37,234.80
  4. Step 4: Simplify right side
    42,721.20x = 2,380,443,104.88
  5. Step 5: Solve for x
    x = 2,380,443,104.88/42,721.20
  6. Step 6: Final answer
    x = 55,720.42

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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.