Home / 68,067.66-93,919.61-39,767.88

Finding the Fourth Proportional to 68,067.66, 93,919.61 and 39,767.88

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Solution

The fourth proportional to 68,067.66, 93,919.61 and 39,767.88 is: 54,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,067.66 : 93,919.61 = 39,767.88 : x
  2. Step 2: Convert to fraction form
    68,067.66/93,919.61 = 39,767.88/x
  3. Step 3: Cross multiply
    68,067.66x = 93,919.61 × 39,767.88
  4. Step 4: Simplify right side
    68,067.66x = 3,734,983,780.13
  5. Step 5: Solve for x
    x = 3,734,983,780.13/68,067.66
  6. Step 6: Final answer
    x = 54,871.63

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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.