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Finding the Fourth Proportional to 80,311.52, 110,832.78 and 48,474.20

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Solution

The fourth proportional to 80,311.52, 110,832.78 and 48,474.20 is: 66,896.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,311.52 : 110,832.78 = 48,474.20 : x
  2. Step 2: Convert to fraction form
    80,311.52/110,832.78 = 48,474.20/x
  3. Step 3: Cross multiply
    80,311.52x = 110,832.78 × 48,474.20
  4. Step 4: Simplify right side
    80,311.52x = 5,372,530,344.28
  5. Step 5: Solve for x
    x = 5,372,530,344.28/80,311.52
  6. Step 6: Final answer
    x = 66,896.14

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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.