Home / 71,563.85-98,761.20-39,732.75

Finding the Fourth Proportional to 71,563.85, 98,761.20 and 39,732.75

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Solution

The fourth proportional to 71,563.85, 98,761.20 and 39,732.75 is: 54,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,563.85 : 98,761.20 = 39,732.75 : x
  2. Step 2: Convert to fraction form
    71,563.85/98,761.20 = 39,732.75/x
  3. Step 3: Cross multiply
    71,563.85x = 98,761.20 × 39,732.75
  4. Step 4: Simplify right side
    71,563.85x = 3,924,053,920.30
  5. Step 5: Solve for x
    x = 3,924,053,920.30/71,563.85
  6. Step 6: Final answer
    x = 54,832.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.