Home / 81,415.27-122,106.68-22,236.90

Finding the Fourth Proportional to 81,415.27, 122,106.68 and 22,236.90

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Solution

The fourth proportional to 81,415.27, 122,106.68 and 22,236.90 is: 33,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,415.27 : 122,106.68 = 22,236.90 : x
  2. Step 2: Convert to fraction form
    81,415.27/122,106.68 = 22,236.90/x
  3. Step 3: Cross multiply
    81,415.27x = 122,106.68 × 22,236.90
  4. Step 4: Simplify right side
    81,415.27x = 2,715,274,032.49
  5. Step 5: Solve for x
    x = 2,715,274,032.49/81,415.27
  6. Step 6: Final answer
    x = 33,350.92

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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.