Home / 45,288-67,939.68-14,117.04

Finding the Fourth Proportional to 45,288, 67,939.68 and 14,117.04

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Solution

The fourth proportional to 45,288, 67,939.68 and 14,117.04 is: 21,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,288 : 67,939.68 = 14,117.04 : x
  2. Step 2: Convert to fraction form
    45,288/67,939.68 = 14,117.04/x
  3. Step 3: Cross multiply
    45,288x = 67,939.68 × 14,117.04
  4. Step 4: Simplify right side
    45,288x = 959,107,180.15
  5. Step 5: Solve for x
    x = 959,107,180.15/45,288
  6. Step 6: Final answer
    x = 21,177.95

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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.