Home / 68,942.87-95,141.54-38,729.46

Finding the Fourth Proportional to 68,942.87, 95,141.54 and 38,729.46

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Solution

The fourth proportional to 68,942.87, 95,141.54 and 38,729.46 is: 53,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,942.87 : 95,141.54 = 38,729.46 : x
  2. Step 2: Convert to fraction form
    68,942.87/95,141.54 = 38,729.46/x
  3. Step 3: Cross multiply
    68,942.87x = 95,141.54 × 38,729.46
  4. Step 4: Simplify right side
    68,942.87x = 3,684,780,274.12
  5. Step 5: Solve for x
    x = 3,684,780,274.12/68,942.87
  6. Step 6: Final answer
    x = 53,446.87

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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.