Home / 54,326.40-81,489.60-47,414.40

Finding the Fourth Proportional to 54,326.40, 81,489.60 and 47,414.40

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Solution

The fourth proportional to 54,326.40, 81,489.60 and 47,414.40 is: 71,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.40 : 81,489.60 = 47,414.40 : x
  2. Step 2: Convert to fraction form
    54,326.40/81,489.60 = 47,414.40/x
  3. Step 3: Cross multiply
    54,326.40x = 81,489.60 × 47,414.40
  4. Step 4: Simplify right side
    54,326.40x = 3,863,780,490.24
  5. Step 5: Solve for x
    x = 3,863,780,490.24/54,326.40
  6. Step 6: Final answer
    x = 71,121.60

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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.