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Finding the Fourth Proportional to 54,174.40, 81,229.20 and 27,930.40

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Solution

The fourth proportional to 54,174.40, 81,229.20 and 27,930.40 is: 41,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,174.40 : 81,229.20 = 27,930.40 : x
  2. Step 2: Convert to fraction form
    54,174.40/81,229.20 = 27,930.40/x
  3. Step 3: Cross multiply
    54,174.40x = 81,229.20 × 27,930.40
  4. Step 4: Simplify right side
    54,174.40x = 2,268,764,047.68
  5. Step 5: Solve for x
    x = 2,268,764,047.68/54,174.40
  6. Step 6: Final answer
    x = 41,878.90

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1.5x scale

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.