Home / 49,979.64-74,966.26-18,414.20

Finding the Fourth Proportional to 49,979.64, 74,966.26 and 18,414.20

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Solution

The fourth proportional to 49,979.64, 74,966.26 and 18,414.20 is: 27,620.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,979.64 : 74,966.26 = 18,414.20 : x
  2. Step 2: Convert to fraction form
    49,979.64/74,966.26 = 18,414.20/x
  3. Step 3: Cross multiply
    49,979.64x = 74,966.26 × 18,414.20
  4. Step 4: Simplify right side
    49,979.64x = 1,380,443,704.89
  5. Step 5: Solve for x
    x = 1,380,443,704.89/49,979.64
  6. Step 6: Final answer
    x = 27,620.12

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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.