Home / 80,469.24-120,705.39-27,880.44

Finding the Fourth Proportional to 80,469.24, 120,705.39 and 27,880.44

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Solution

The fourth proportional to 80,469.24, 120,705.39 and 27,880.44 is: 41,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,469.24 : 120,705.39 = 27,880.44 : x
  2. Step 2: Convert to fraction form
    80,469.24/120,705.39 = 27,880.44/x
  3. Step 3: Cross multiply
    80,469.24x = 120,705.39 × 27,880.44
  4. Step 4: Simplify right side
    80,469.24x = 3,365,319,383.57
  5. Step 5: Solve for x
    x = 3,365,319,383.57/80,469.24
  6. Step 6: Final answer
    x = 41,821.19

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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.