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Finding the Fourth Proportional to 80,451.63, 120,650.11 and 27,848.81

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Solution

The fourth proportional to 80,451.63, 120,650.11 and 27,848.81 is: 41,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,451.63 : 120,650.11 = 27,848.81 : x
  2. Step 2: Convert to fraction form
    80,451.63/120,650.11 = 27,848.81/x
  3. Step 3: Cross multiply
    80,451.63x = 120,650.11 × 27,848.81
  4. Step 4: Simplify right side
    80,451.63x = 3,359,962,221.87
  5. Step 5: Solve for x
    x = 3,359,962,221.87/80,451.63
  6. Step 6: Final answer
    x = 41,763.76

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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.