Home / 80,304.44-120,531.38-40,891.05

Finding the Fourth Proportional to 80,304.44, 120,531.38 and 40,891.05

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Solution

The fourth proportional to 80,304.44, 120,531.38 and 40,891.05 is: 61,374.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,304.44 : 120,531.38 = 40,891.05 : x
  2. Step 2: Convert to fraction form
    80,304.44/120,531.38 = 40,891.05/x
  3. Step 3: Cross multiply
    80,304.44x = 120,531.38 × 40,891.05
  4. Step 4: Simplify right side
    80,304.44x = 4,928,654,481.69
  5. Step 5: Solve for x
    x = 4,928,654,481.69/80,304.44
  6. Step 6: Final answer
    x = 61,374.62

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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.