Home / 73,159.38-109,711.50-28,761.84

Finding the Fourth Proportional to 73,159.38, 109,711.50 and 28,761.84

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Solution

The fourth proportional to 73,159.38, 109,711.50 and 28,761.84 is: 43,131.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,159.38 : 109,711.50 = 28,761.84 : x
  2. Step 2: Convert to fraction form
    73,159.38/109,711.50 = 28,761.84/x
  3. Step 3: Cross multiply
    73,159.38x = 109,711.50 × 28,761.84
  4. Step 4: Simplify right side
    73,159.38x = 3,155,504,609.16
  5. Step 5: Solve for x
    x = 3,155,504,609.16/73,159.38
  6. Step 6: Final answer
    x = 43,131.92

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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.