Home / 80,942.06-121,383.92-34,198.58

Finding the Fourth Proportional to 80,942.06, 121,383.92 and 34,198.58

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Solution

The fourth proportional to 80,942.06, 121,383.92 and 34,198.58 is: 51,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942.06 : 121,383.92 = 34,198.58 : x
  2. Step 2: Convert to fraction form
    80,942.06/121,383.92 = 34,198.58/x
  3. Step 3: Cross multiply
    80,942.06x = 121,383.92 × 34,198.58
  4. Step 4: Simplify right side
    80,942.06x = 4,151,157,698.83
  5. Step 5: Solve for x
    x = 4,151,157,698.83/80,942.06
  6. Step 6: Final answer
    x = 51,285.55

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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.