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Finding the Fourth Proportional to 80,067.12, 120,059.88 and 26,739.92

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Solution

The fourth proportional to 80,067.12, 120,059.88 and 26,739.92 is: 40,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,067.12 : 120,059.88 = 26,739.92 : x
  2. Step 2: Convert to fraction form
    80,067.12/120,059.88 = 26,739.92/x
  3. Step 3: Cross multiply
    80,067.12x = 120,059.88 × 26,739.92
  4. Step 4: Simplify right side
    80,067.12x = 3,210,391,586.41
  5. Step 5: Solve for x
    x = 3,210,391,586.41/80,067.12
  6. Step 6: Final answer
    x = 40,096.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.