Home / 84,343.68-126,427.38-39,917.52

Finding the Fourth Proportional to 84,343.68, 126,427.38 and 39,917.52

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Solution

The fourth proportional to 84,343.68, 126,427.38 and 39,917.52 is: 59,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,343.68 : 126,427.38 = 39,917.52 : x
  2. Step 2: Convert to fraction form
    84,343.68/126,427.38 = 39,917.52/x
  3. Step 3: Cross multiply
    84,343.68x = 126,427.38 × 39,917.52
  4. Step 4: Simplify right side
    84,343.68x = 5,046,667,469.70
  5. Step 5: Solve for x
    x = 5,046,667,469.70/84,343.68
  6. Step 6: Final answer
    x = 59,834.57

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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.