Home / 71,934.80-107,933.30-38,615.96

Finding the Fourth Proportional to 71,934.80, 107,933.30 and 38,615.96

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Solution

The fourth proportional to 71,934.80, 107,933.30 and 38,615.96 is: 57,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,934.80 : 107,933.30 = 38,615.96 : x
  2. Step 2: Convert to fraction form
    71,934.80/107,933.30 = 38,615.96/x
  3. Step 3: Cross multiply
    71,934.80x = 107,933.30 × 38,615.96
  4. Step 4: Simplify right side
    71,934.80x = 4,167,947,262.72
  5. Step 5: Solve for x
    x = 4,167,947,262.72/71,934.80
  6. Step 6: Final answer
    x = 57,940.62

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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.