Home / 79,789.97-110,115.08-43,979.90

Finding the Fourth Proportional to 79,789.97, 110,115.08 and 43,979.90

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Solution

The fourth proportional to 79,789.97, 110,115.08 and 43,979.90 is: 60,694.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.97 : 110,115.08 = 43,979.90 : x
  2. Step 2: Convert to fraction form
    79,789.97/110,115.08 = 43,979.90/x
  3. Step 3: Cross multiply
    79,789.97x = 110,115.08 × 43,979.90
  4. Step 4: Simplify right side
    79,789.97x = 4,842,849,436.42
  5. Step 5: Solve for x
    x = 4,842,849,436.42/79,789.97
  6. Step 6: Final answer
    x = 60,694.97

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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.