Home / 80,541.46-111,017.97-54,691.90

Finding the Fourth Proportional to 80,541.46, 111,017.97 and 54,691.90

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Solution

The fourth proportional to 80,541.46, 111,017.97 and 54,691.90 is: 75,387.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541.46 : 111,017.97 = 54,691.90 : x
  2. Step 2: Convert to fraction form
    80,541.46/111,017.97 = 54,691.90/x
  3. Step 3: Cross multiply
    80,541.46x = 111,017.97 × 54,691.90
  4. Step 4: Simplify right side
    80,541.46x = 6,071,783,713.44
  5. Step 5: Solve for x
    x = 6,071,783,713.44/80,541.46
  6. Step 6: Final answer
    x = 75,387.06

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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.