Home / 73,140.35-109,706.88-25,757.78

Finding the Fourth Proportional to 73,140.35, 109,706.88 and 25,757.78

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Solution

The fourth proportional to 73,140.35, 109,706.88 and 25,757.78 is: 38,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,140.35 : 109,706.88 = 25,757.78 : x
  2. Step 2: Convert to fraction form
    73,140.35/109,706.88 = 25,757.78/x
  3. Step 3: Cross multiply
    73,140.35x = 109,706.88 × 25,757.78
  4. Step 4: Simplify right side
    73,140.35x = 2,825,805,679.53
  5. Step 5: Solve for x
    x = 2,825,805,679.53/73,140.35
  6. Step 6: Final answer
    x = 38,635.39

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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.