Home / 71,558.38-107,218.17-31,517.74

Finding the Fourth Proportional to 71,558.38, 107,218.17 and 31,517.74

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Solution

The fourth proportional to 71,558.38, 107,218.17 and 31,517.74 is: 47,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,558.38 : 107,218.17 = 31,517.74 : x
  2. Step 2: Convert to fraction form
    71,558.38/107,218.17 = 31,517.74/x
  3. Step 3: Cross multiply
    71,558.38x = 107,218.17 × 31,517.74
  4. Step 4: Simplify right side
    71,558.38x = 3,379,274,405.34
  5. Step 5: Solve for x
    x = 3,379,274,405.34/71,558.38
  6. Step 6: Final answer
    x = 47,224.02

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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.