Home / 81,475.24-122,212.97-22,311.42

Finding the Fourth Proportional to 81,475.24, 122,212.97 and 22,311.42

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Solution

The fourth proportional to 81,475.24, 122,212.97 and 22,311.42 is: 33,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,475.24 : 122,212.97 = 22,311.42 : x
  2. Step 2: Convert to fraction form
    81,475.24/122,212.97 = 22,311.42/x
  3. Step 3: Cross multiply
    81,475.24x = 122,212.97 × 22,311.42
  4. Step 4: Simplify right side
    81,475.24x = 2,726,744,903.12
  5. Step 5: Solve for x
    x = 2,726,744,903.12/81,475.24
  6. Step 6: Final answer
    x = 33,467.16

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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.