Home / 81,675.29-122,517.54-29,084.78

Finding the Fourth Proportional to 81,675.29, 122,517.54 and 29,084.78

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Solution

The fourth proportional to 81,675.29, 122,517.54 and 29,084.78 is: 43,628.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,675.29 : 122,517.54 = 29,084.78 : x
  2. Step 2: Convert to fraction form
    81,675.29/122,517.54 = 29,084.78/x
  3. Step 3: Cross multiply
    81,675.29x = 122,517.54 × 29,084.78
  4. Step 4: Simplify right side
    81,675.29x = 3,563,396,003.34
  5. Step 5: Solve for x
    x = 3,563,396,003.34/81,675.29
  6. Step 6: Final answer
    x = 43,628.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.