Home / 80,585.60-111,213.44-48,755.84

Finding the Fourth Proportional to 80,585.60, 111,213.44 and 48,755.84

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Solution

The fourth proportional to 80,585.60, 111,213.44 and 48,755.84 is: 67,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,585.60 : 111,213.44 = 48,755.84 : x
  2. Step 2: Convert to fraction form
    80,585.60/111,213.44 = 48,755.84/x
  3. Step 3: Cross multiply
    80,585.60x = 111,213.44 × 48,755.84
  4. Step 4: Simplify right side
    80,585.60x = 5,422,304,686.49
  5. Step 5: Solve for x
    x = 5,422,304,686.49/80,585.60
  6. Step 6: Final answer
    x = 67,286.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.