Home / 71,704.12-107,326.14-38,340.76

Finding the Fourth Proportional to 71,704.12, 107,326.14 and 38,340.76

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Solution

The fourth proportional to 71,704.12, 107,326.14 and 38,340.76 is: 57,388.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,704.12 : 107,326.14 = 38,340.76 : x
  2. Step 2: Convert to fraction form
    71,704.12/107,326.14 = 38,340.76/x
  3. Step 3: Cross multiply
    71,704.12x = 107,326.14 × 38,340.76
  4. Step 4: Simplify right side
    71,704.12x = 4,114,965,775.47
  5. Step 5: Solve for x
    x = 4,114,965,775.47/71,704.12
  6. Step 6: Final answer
    x = 57,388.14

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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.