Home / 81,286.12-112,092.42-49,423.96

Finding the Fourth Proportional to 81,286.12, 112,092.42 and 49,423.96

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Solution

The fourth proportional to 81,286.12, 112,092.42 and 49,423.96 is: 68,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,286.12 : 112,092.42 = 49,423.96 : x
  2. Step 2: Convert to fraction form
    81,286.12/112,092.42 = 49,423.96/x
  3. Step 3: Cross multiply
    81,286.12x = 112,092.42 × 49,423.96
  4. Step 4: Simplify right side
    81,286.12x = 5,540,051,282.38
  5. Step 5: Solve for x
    x = 5,540,051,282.38/81,286.12
  6. Step 6: Final answer
    x = 68,154.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.