Home / 81,195.45-111,947.75-62,098.65

Finding the Fourth Proportional to 81,195.45, 111,947.75 and 62,098.65

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Solution

The fourth proportional to 81,195.45, 111,947.75 and 62,098.65 is: 85,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.45 : 111,947.75 = 62,098.65 : x
  2. Step 2: Convert to fraction form
    81,195.45/111,947.75 = 62,098.65/x
  3. Step 3: Cross multiply
    81,195.45x = 111,947.75 × 62,098.65
  4. Step 4: Simplify right side
    81,195.45x = 6,951,804,145.54
  5. Step 5: Solve for x
    x = 6,951,804,145.54/81,195.45
  6. Step 6: Final answer
    x = 85,618.15

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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.