Home / 68,629.41-102,933.72-18,713.57

Finding the Fourth Proportional to 68,629.41, 102,933.72 and 18,713.57

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Solution

The fourth proportional to 68,629.41, 102,933.72 and 18,713.57 is: 28,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,629.41 : 102,933.72 = 18,713.57 : x
  2. Step 2: Convert to fraction form
    68,629.41/102,933.72 = 18,713.57/x
  3. Step 3: Cross multiply
    68,629.41x = 102,933.72 × 18,713.57
  4. Step 4: Simplify right side
    68,629.41x = 1,926,256,859.91
  5. Step 5: Solve for x
    x = 1,926,256,859.91/68,629.41
  6. Step 6: Final answer
    x = 28,067.51

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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.