Home / 71,747.12-107,620.50-34,193.36

Finding the Fourth Proportional to 71,747.12, 107,620.50 and 34,193.36

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Solution

The fourth proportional to 71,747.12, 107,620.50 and 34,193.36 is: 51,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,747.12 : 107,620.50 = 34,193.36 : x
  2. Step 2: Convert to fraction form
    71,747.12/107,620.50 = 34,193.36/x
  3. Step 3: Cross multiply
    71,747.12x = 107,620.50 × 34,193.36
  4. Step 4: Simplify right side
    71,747.12x = 3,679,906,499.88
  5. Step 5: Solve for x
    x = 3,679,906,499.88/71,747.12
  6. Step 6: Final answer
    x = 51,289.95

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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.