Home / 80,540.22-111,143.79-44,729.58

Finding the Fourth Proportional to 80,540.22, 111,143.79 and 44,729.58

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Solution

The fourth proportional to 80,540.22, 111,143.79 and 44,729.58 is: 61,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,540.22 : 111,143.79 = 44,729.58 : x
  2. Step 2: Convert to fraction form
    80,540.22/111,143.79 = 44,729.58/x
  3. Step 3: Cross multiply
    80,540.22x = 111,143.79 × 44,729.58
  4. Step 4: Simplify right side
    80,540.22x = 4,971,415,046.31
  5. Step 5: Solve for x
    x = 4,971,415,046.31/80,540.22
  6. Step 6: Final answer
    x = 61,725.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.