Home / 81,083.12-111,894.66-45,273.11

Finding the Fourth Proportional to 81,083.12, 111,894.66 and 45,273.11

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Solution

The fourth proportional to 81,083.12, 111,894.66 and 45,273.11 is: 62,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.12 : 111,894.66 = 45,273.11 : x
  2. Step 2: Convert to fraction form
    81,083.12/111,894.66 = 45,273.11/x
  3. Step 3: Cross multiply
    81,083.12x = 111,894.66 × 45,273.11
  4. Step 4: Simplify right side
    81,083.12x = 5,065,818,691.12
  5. Step 5: Solve for x
    x = 5,065,818,691.12/81,083.12
  6. Step 6: Final answer
    x = 62,476.86

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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.