Home / 81,605.25-122,370.93-29,016.12

Finding the Fourth Proportional to 81,605.25, 122,370.93 and 29,016.12

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Solution

The fourth proportional to 81,605.25, 122,370.93 and 29,016.12 is: 43,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,605.25 : 122,370.93 = 29,016.12 : x
  2. Step 2: Convert to fraction form
    81,605.25/122,370.93 = 29,016.12/x
  3. Step 3: Cross multiply
    81,605.25x = 122,370.93 × 29,016.12
  4. Step 4: Simplify right side
    81,605.25x = 3,550,729,589.39
  5. Step 5: Solve for x
    x = 3,550,729,589.39/81,605.25
  6. Step 6: Final answer
    x = 43,511.04

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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.