Home / 68,001.33-102,001.89-18,081.45

Finding the Fourth Proportional to 68,001.33, 102,001.89 and 18,081.45

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Solution

The fourth proportional to 68,001.33, 102,001.89 and 18,081.45 is: 27,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,001.33 : 102,001.89 = 18,081.45 : x
  2. Step 2: Convert to fraction form
    68,001.33/102,001.89 = 18,081.45/x
  3. Step 3: Cross multiply
    68,001.33x = 102,001.89 × 18,081.45
  4. Step 4: Simplify right side
    68,001.33x = 1,844,342,073.94
  5. Step 5: Solve for x
    x = 1,844,342,073.94/68,001.33
  6. Step 6: Final answer
    x = 27,122.15

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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.