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Finding the Fourth Proportional to 84,134.57, 126,174.56 and 27,959.58

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Solution

The fourth proportional to 84,134.57, 126,174.56 and 27,959.58 is: 41,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,134.57 : 126,174.56 = 27,959.58 : x
  2. Step 2: Convert to fraction form
    84,134.57/126,174.56 = 27,959.58/x
  3. Step 3: Cross multiply
    84,134.57x = 126,174.56 × 27,959.58
  4. Step 4: Simplify right side
    84,134.57x = 3,527,787,564.49
  5. Step 5: Solve for x
    x = 3,527,787,564.49/84,134.57
  6. Step 6: Final answer
    x = 41,930.30

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1.5x scale

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.