Home / 68,122.53-102,179.60-25,419.65

Finding the Fourth Proportional to 68,122.53, 102,179.60 and 25,419.65

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Solution

The fourth proportional to 68,122.53, 102,179.60 and 25,419.65 is: 38,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,122.53 : 102,179.60 = 25,419.65 : x
  2. Step 2: Convert to fraction form
    68,122.53/102,179.60 = 25,419.65/x
  3. Step 3: Cross multiply
    68,122.53x = 102,179.60 × 25,419.65
  4. Step 4: Simplify right side
    68,122.53x = 2,597,369,669.14
  5. Step 5: Solve for x
    x = 2,597,369,669.14/68,122.53
  6. Step 6: Final answer
    x = 38,127.91

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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.