Home / 68,943.36-95,142.22-38,729.96

Finding the Fourth Proportional to 68,943.36, 95,142.22 and 38,729.96

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Solution

The fourth proportional to 68,943.36, 95,142.22 and 38,729.96 is: 53,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,943.36 : 95,142.22 = 38,729.96 : x
  2. Step 2: Convert to fraction form
    68,943.36/95,142.22 = 38,729.96/x
  3. Step 3: Cross multiply
    68,943.36x = 95,142.22 × 38,729.96
  4. Step 4: Simplify right side
    68,943.36x = 3,684,854,374.91
  5. Step 5: Solve for x
    x = 3,684,854,374.91/68,943.36
  6. Step 6: Final answer
    x = 53,447.56

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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.