Home / 81,661.38-122,377.86-44,241.84

Finding the Fourth Proportional to 81,661.38, 122,377.86 and 44,241.84

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Solution

The fourth proportional to 81,661.38, 122,377.86 and 44,241.84 is: 66,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661.38 : 122,377.86 = 44,241.84 : x
  2. Step 2: Convert to fraction form
    81,661.38/122,377.86 = 44,241.84/x
  3. Step 3: Cross multiply
    81,661.38x = 122,377.86 × 44,241.84
  4. Step 4: Simplify right side
    81,661.38x = 5,414,221,701.66
  5. Step 5: Solve for x
    x = 5,414,221,701.66/81,661.38
  6. Step 6: Final answer
    x = 66,300.88

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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.