Home / 71,540.28-107,326.62-38,242.80

Finding the Fourth Proportional to 71,540.28, 107,326.62 and 38,242.80

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Solution

The fourth proportional to 71,540.28, 107,326.62 and 38,242.80 is: 57,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,540.28 : 107,326.62 = 38,242.80 : x
  2. Step 2: Convert to fraction form
    71,540.28/107,326.62 = 38,242.80/x
  3. Step 3: Cross multiply
    71,540.28x = 107,326.62 × 38,242.80
  4. Step 4: Simplify right side
    71,540.28x = 4,104,470,463.34
  5. Step 5: Solve for x
    x = 4,104,470,463.34/71,540.28
  6. Step 6: Final answer
    x = 57,372.86

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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.