Home / 81,343.38-122,002.50-22,183.86

Finding the Fourth Proportional to 81,343.38, 122,002.50 and 22,183.86

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Solution

The fourth proportional to 81,343.38, 122,002.50 and 22,183.86 is: 33,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,343.38 : 122,002.50 = 22,183.86 : x
  2. Step 2: Convert to fraction form
    81,343.38/122,002.50 = 22,183.86/x
  3. Step 3: Cross multiply
    81,343.38x = 122,002.50 × 22,183.86
  4. Step 4: Simplify right side
    81,343.38x = 2,706,486,379.65
  5. Step 5: Solve for x
    x = 2,706,486,379.65/81,343.38
  6. Step 6: Final answer
    x = 33,272.36

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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.