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Finding the Fourth Proportional to 68,017.74, 101,922.66 and 28,553.19

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Solution

The fourth proportional to 68,017.74, 101,922.66 and 28,553.19 is: 42,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,017.74 : 101,922.66 = 28,553.19 : x
  2. Step 2: Convert to fraction form
    68,017.74/101,922.66 = 28,553.19/x
  3. Step 3: Cross multiply
    68,017.74x = 101,922.66 × 28,553.19
  4. Step 4: Simplify right side
    68,017.74x = 2,910,217,076.29
  5. Step 5: Solve for x
    x = 2,910,217,076.29/68,017.74
  6. Step 6: Final answer
    x = 42,786.15

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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.