Home / 54,458.40-81,687.60-40,634.40

Finding the Fourth Proportional to 54,458.40, 81,687.60 and 40,634.40

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Solution

The fourth proportional to 54,458.40, 81,687.60 and 40,634.40 is: 60,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458.40 : 81,687.60 = 40,634.40 : x
  2. Step 2: Convert to fraction form
    54,458.40/81,687.60 = 40,634.40/x
  3. Step 3: Cross multiply
    54,458.40x = 81,687.60 × 40,634.40
  4. Step 4: Simplify right side
    54,458.40x = 3,319,326,613.44
  5. Step 5: Solve for x
    x = 3,319,326,613.44/54,458.40
  6. Step 6: Final answer
    x = 60,951.60

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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.