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Finding the Fourth Proportional to 80,679.39, 111,335.98 and 44,868.64

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Solution

The fourth proportional to 80,679.39, 111,335.98 and 44,868.64 is: 61,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,679.39 : 111,335.98 = 44,868.64 : x
  2. Step 2: Convert to fraction form
    80,679.39/111,335.98 = 44,868.64/x
  3. Step 3: Cross multiply
    80,679.39x = 111,335.98 × 44,868.64
  4. Step 4: Simplify right side
    80,679.39x = 4,995,493,224.64
  5. Step 5: Solve for x
    x = 4,995,493,224.64/80,679.39
  6. Step 6: Final answer
    x = 61,917.84

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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.