Home / 81,964.62-122,936.16-25,805.02

Finding the Fourth Proportional to 81,964.62, 122,936.16 and 25,805.02

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Solution

The fourth proportional to 81,964.62, 122,936.16 and 25,805.02 is: 38,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,964.62 : 122,936.16 = 25,805.02 : x
  2. Step 2: Convert to fraction form
    81,964.62/122,936.16 = 25,805.02/x
  3. Step 3: Cross multiply
    81,964.62x = 122,936.16 × 25,805.02
  4. Step 4: Simplify right side
    81,964.62x = 3,172,369,938.50
  5. Step 5: Solve for x
    x = 3,172,369,938.50/81,964.62
  6. Step 6: Final answer
    x = 38,704.14

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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.