Home / 80,532.39-111,138.40-44,722.56

Finding the Fourth Proportional to 80,532.39, 111,138.40 and 44,722.56

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Solution

The fourth proportional to 80,532.39, 111,138.40 and 44,722.56 is: 61,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,532.39 : 111,138.40 = 44,722.56 : x
  2. Step 2: Convert to fraction form
    80,532.39/111,138.40 = 44,722.56/x
  3. Step 3: Cross multiply
    80,532.39x = 111,138.40 × 44,722.56
  4. Step 4: Simplify right side
    80,532.39x = 4,970,393,983.41
  5. Step 5: Solve for x
    x = 4,970,393,983.41/80,532.39
  6. Step 6: Final answer
    x = 61,719.19

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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.