Home / 83,861.12-115,731.20-48,058.04

Finding the Fourth Proportional to 83,861.12, 115,731.20 and 48,058.04

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Solution

The fourth proportional to 83,861.12, 115,731.20 and 48,058.04 is: 66,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.12 : 115,731.20 = 48,058.04 : x
  2. Step 2: Convert to fraction form
    83,861.12/115,731.20 = 48,058.04/x
  3. Step 3: Cross multiply
    83,861.12x = 115,731.20 × 48,058.04
  4. Step 4: Simplify right side
    83,861.12x = 5,561,815,048.32
  5. Step 5: Solve for x
    x = 5,561,815,048.32/83,861.12
  6. Step 6: Final answer
    x = 66,321.73

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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.