Home / 80,517.85-111,112.83-44,707.21

Finding the Fourth Proportional to 80,517.85, 111,112.83 and 44,707.21

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Solution

The fourth proportional to 80,517.85, 111,112.83 and 44,707.21 is: 61,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,517.85 : 111,112.83 = 44,707.21 : x
  2. Step 2: Convert to fraction form
    80,517.85/111,112.83 = 44,707.21/x
  3. Step 3: Cross multiply
    80,517.85x = 111,112.83 × 44,707.21
  4. Step 4: Simplify right side
    80,517.85x = 4,967,544,346.72
  5. Step 5: Solve for x
    x = 4,967,544,346.72/80,517.85
  6. Step 6: Final answer
    x = 61,694.95

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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.