Home / 80,584.26-120,834.68-36,172.77

Finding the Fourth Proportional to 80,584.26, 120,834.68 and 36,172.77

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Solution

The fourth proportional to 80,584.26, 120,834.68 and 36,172.77 is: 54,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,584.26 : 120,834.68 = 36,172.77 : x
  2. Step 2: Convert to fraction form
    80,584.26/120,834.68 = 36,172.77/x
  3. Step 3: Cross multiply
    80,584.26x = 120,834.68 × 36,172.77
  4. Step 4: Simplify right side
    80,584.26x = 4,370,924,906.80
  5. Step 5: Solve for x
    x = 4,370,924,906.80/80,584.26
  6. Step 6: Final answer
    x = 54,240.43

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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.