Home / 81,342.23-122,009.74-22,177.90

Finding the Fourth Proportional to 81,342.23, 122,009.74 and 22,177.90

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Solution

The fourth proportional to 81,342.23, 122,009.74 and 22,177.90 is: 33,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,342.23 : 122,009.74 = 22,177.90 : x
  2. Step 2: Convert to fraction form
    81,342.23/122,009.74 = 22,177.90/x
  3. Step 3: Cross multiply
    81,342.23x = 122,009.74 × 22,177.90
  4. Step 4: Simplify right side
    81,342.23x = 2,705,919,812.75
  5. Step 5: Solve for x
    x = 2,705,919,812.75/81,342.23
  6. Step 6: Final answer
    x = 33,265.87

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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.