Home / 68,067.30-93,919.10-39,767.52

Finding the Fourth Proportional to 68,067.30, 93,919.10 and 39,767.52

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Solution

The fourth proportional to 68,067.30, 93,919.10 and 39,767.52 is: 54,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,067.30 : 93,919.10 = 39,767.52 : x
  2. Step 2: Convert to fraction form
    68,067.30/93,919.10 = 39,767.52/x
  3. Step 3: Cross multiply
    68,067.30x = 93,919.10 × 39,767.52
  4. Step 4: Simplify right side
    68,067.30x = 3,734,929,687.63
  5. Step 5: Solve for x
    x = 3,734,929,687.63/68,067.30
  6. Step 6: Final answer
    x = 54,871.13

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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.