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Finding the Fourth Proportional to 80,240.80, 120,361.20 and 33,527.20

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Solution

The fourth proportional to 80,240.80, 120,361.20 and 33,527.20 is: 50,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,240.80 : 120,361.20 = 33,527.20 : x
  2. Step 2: Convert to fraction form
    80,240.80/120,361.20 = 33,527.20/x
  3. Step 3: Cross multiply
    80,240.80x = 120,361.20 × 33,527.20
  4. Step 4: Simplify right side
    80,240.80x = 4,035,374,024.64
  5. Step 5: Solve for x
    x = 4,035,374,024.64/80,240.80
  6. Step 6: Final answer
    x = 50,290.80

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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.