Home / 80,761.33-111,215.46-62,826.13

Finding the Fourth Proportional to 80,761.33, 111,215.46 and 62,826.13

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Solution

The fourth proportional to 80,761.33, 111,215.46 and 62,826.13 is: 86,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,761.33 : 111,215.46 = 62,826.13 : x
  2. Step 2: Convert to fraction form
    80,761.33/111,215.46 = 62,826.13/x
  3. Step 3: Cross multiply
    80,761.33x = 111,215.46 × 62,826.13
  4. Step 4: Simplify right side
    80,761.33x = 6,987,236,947.97
  5. Step 5: Solve for x
    x = 6,987,236,947.97/80,761.33
  6. Step 6: Final answer
    x = 86,517.11

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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.