Home / 77,758.97-107,310.79-43,769.65

Finding the Fourth Proportional to 77,758.97, 107,310.79 and 43,769.65

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Solution

The fourth proportional to 77,758.97, 107,310.79 and 43,769.65 is: 60,404.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,758.97 : 107,310.79 = 43,769.65 : x
  2. Step 2: Convert to fraction form
    77,758.97/107,310.79 = 43,769.65/x
  3. Step 3: Cross multiply
    77,758.97x = 107,310.79 × 43,769.65
  4. Step 4: Simplify right side
    77,758.97x = 4,696,955,719.52
  5. Step 5: Solve for x
    x = 4,696,955,719.52/77,758.97
  6. Step 6: Final answer
    x = 60,404.04

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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.