Home / 67,321.08-100,704.06-55,339.92

Finding the Fourth Proportional to 67,321.08, 100,704.06 and 55,339.92

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Solution

The fourth proportional to 67,321.08, 100,704.06 and 55,339.92 is: 82,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,321.08 : 100,704.06 = 55,339.92 : x
  2. Step 2: Convert to fraction form
    67,321.08/100,704.06 = 55,339.92/x
  3. Step 3: Cross multiply
    67,321.08x = 100,704.06 × 55,339.92
  4. Step 4: Simplify right side
    67,321.08x = 5,572,954,624.08
  5. Step 5: Solve for x
    x = 5,572,954,624.08/67,321.08
  6. Step 6: Final answer
    x = 82,781.72

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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.