Home / 91,474.25-137,209.68-38,194.88

Finding the Fourth Proportional to 91,474.25, 137,209.68 and 38,194.88

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Solution

The fourth proportional to 91,474.25, 137,209.68 and 38,194.88 is: 57,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,474.25 : 137,209.68 = 38,194.88 : x
  2. Step 2: Convert to fraction form
    91,474.25/137,209.68 = 38,194.88/x
  3. Step 3: Cross multiply
    91,474.25x = 137,209.68 × 38,194.88
  4. Step 4: Simplify right side
    91,474.25x = 5,240,706,576.39
  5. Step 5: Solve for x
    x = 5,240,706,576.39/91,474.25
  6. Step 6: Final answer
    x = 57,291.61

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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.