Home / 36,122.11-54,169.70-12,422.95

Finding the Fourth Proportional to 36,122.11, 54,169.70 and 12,422.95

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Solution

The fourth proportional to 36,122.11, 54,169.70 and 12,422.95 is: 18,629.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.11 : 54,169.70 = 12,422.95 : x
  2. Step 2: Convert to fraction form
    36,122.11/54,169.70 = 12,422.95/x
  3. Step 3: Cross multiply
    36,122.11x = 54,169.70 × 12,422.95
  4. Step 4: Simplify right side
    36,122.11x = 672,947,277.08
  5. Step 5: Solve for x
    x = 672,947,277.08/36,122.11
  6. Step 6: Final answer
    x = 18,629.79

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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.