Home / 91,791.15-137,690.10-25,236.48

Finding the Fourth Proportional to 91,791.15, 137,690.10 and 25,236.48

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Solution

The fourth proportional to 91,791.15, 137,690.10 and 25,236.48 is: 37,855.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,791.15 : 137,690.10 = 25,236.48 : x
  2. Step 2: Convert to fraction form
    91,791.15/137,690.10 = 25,236.48/x
  3. Step 3: Cross multiply
    91,791.15x = 137,690.10 × 25,236.48
  4. Step 4: Simplify right side
    91,791.15x = 3,474,813,454.85
  5. Step 5: Solve for x
    x = 3,474,813,454.85/91,791.15
  6. Step 6: Final answer
    x = 37,855.65

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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.