Home / 91,251.54-137,120.30-49,163.94

Finding the Fourth Proportional to 91,251.54, 137,120.30 and 49,163.94

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Solution

The fourth proportional to 91,251.54, 137,120.30 and 49,163.94 is: 73,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,251.54 : 137,120.30 = 49,163.94 : x
  2. Step 2: Convert to fraction form
    91,251.54/137,120.30 = 49,163.94/x
  3. Step 3: Cross multiply
    91,251.54x = 137,120.30 × 49,163.94
  4. Step 4: Simplify right side
    91,251.54x = 6,741,374,201.98
  5. Step 5: Solve for x
    x = 6,741,374,201.98/91,251.54
  6. Step 6: Final answer
    x = 73,876.83

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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.