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Finding the Fourth Proportional to 80,293.08, 110,942.28 and 77,454.84

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Solution

The fourth proportional to 80,293.08, 110,942.28 and 77,454.84 is: 107,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,293.08 : 110,942.28 = 77,454.84 : x
  2. Step 2: Convert to fraction form
    80,293.08/110,942.28 = 77,454.84/x
  3. Step 3: Cross multiply
    80,293.08x = 110,942.28 × 77,454.84
  4. Step 4: Simplify right side
    80,293.08x = 8,593,016,546.64
  5. Step 5: Solve for x
    x = 8,593,016,546.64/80,293.08
  6. Step 6: Final answer
    x = 107,020.64

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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.