Home / 77,974.12-116,979.68-25,383.64

Finding the Fourth Proportional to 77,974.12, 116,979.68 and 25,383.64

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Solution

The fourth proportional to 77,974.12, 116,979.68 and 25,383.64 is: 38,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,974.12 : 116,979.68 = 25,383.64 : x
  2. Step 2: Convert to fraction form
    77,974.12/116,979.68 = 25,383.64/x
  3. Step 3: Cross multiply
    77,974.12x = 116,979.68 × 25,383.64
  4. Step 4: Simplify right side
    77,974.12x = 2,969,370,084.44
  5. Step 5: Solve for x
    x = 2,969,370,084.44/77,974.12
  6. Step 6: Final answer
    x = 38,081.48

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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.