Home / 67,003.28-100,373.52-38,864.20

Finding the Fourth Proportional to 67,003.28, 100,373.52 and 38,864.20

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Solution

The fourth proportional to 67,003.28, 100,373.52 and 38,864.20 is: 58,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,003.28 : 100,373.52 = 38,864.20 : x
  2. Step 2: Convert to fraction form
    67,003.28/100,373.52 = 38,864.20/x
  3. Step 3: Cross multiply
    67,003.28x = 100,373.52 × 38,864.20
  4. Step 4: Simplify right side
    67,003.28x = 3,900,936,555.98
  5. Step 5: Solve for x
    x = 3,900,936,555.98/67,003.28
  6. Step 6: Final answer
    x = 58,220.08

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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.