Home / 78,231.27-117,340.75-22,069.11

Finding the Fourth Proportional to 78,231.27, 117,340.75 and 22,069.11

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Solution

The fourth proportional to 78,231.27, 117,340.75 and 22,069.11 is: 33,101.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,231.27 : 117,340.75 = 22,069.11 : x
  2. Step 2: Convert to fraction form
    78,231.27/117,340.75 = 22,069.11/x
  3. Step 3: Cross multiply
    78,231.27x = 117,340.75 × 22,069.11
  4. Step 4: Simplify right side
    78,231.27x = 2,589,605,726.80
  5. Step 5: Solve for x
    x = 2,589,605,726.80/78,231.27
  6. Step 6: Final answer
    x = 33,101.93

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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.