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Finding the Fourth Proportional to 80,944.44, 111,702.84 and 45,134.88

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Solution

The fourth proportional to 80,944.44, 111,702.84 and 45,134.88 is: 62,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,944.44 : 111,702.84 = 45,134.88 : x
  2. Step 2: Convert to fraction form
    80,944.44/111,702.84 = 45,134.88/x
  3. Step 3: Cross multiply
    80,944.44x = 111,702.84 × 45,134.88
  4. Step 4: Simplify right side
    80,944.44x = 5,041,694,279.06
  5. Step 5: Solve for x
    x = 5,041,694,279.06/80,944.44
  6. Step 6: Final answer
    x = 62,285.86

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1.5x scale

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.