Home / 80,532.40-111,135.80-44,724.72

Finding the Fourth Proportional to 80,532.40, 111,135.80 and 44,724.72

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Solution

The fourth proportional to 80,532.40, 111,135.80 and 44,724.72 is: 61,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,532.40 : 111,135.80 = 44,724.72 : x
  2. Step 2: Convert to fraction form
    80,532.40/111,135.80 = 44,724.72/x
  3. Step 3: Cross multiply
    80,532.40x = 111,135.80 × 44,724.72
  4. Step 4: Simplify right side
    80,532.40x = 4,970,517,536.98
  5. Step 5: Solve for x
    x = 4,970,517,536.98/80,532.40
  6. Step 6: Final answer
    x = 61,720.72

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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.