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Finding the Fourth Proportional to 68,029.26, 101,874.16 and 42,993.78

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Solution

The fourth proportional to 68,029.26, 101,874.16 and 42,993.78 is: 64,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,029.26 : 101,874.16 = 42,993.78 : x
  2. Step 2: Convert to fraction form
    68,029.26/101,874.16 = 42,993.78/x
  3. Step 3: Cross multiply
    68,029.26x = 101,874.16 × 42,993.78
  4. Step 4: Simplify right side
    68,029.26x = 4,379,955,222.72
  5. Step 5: Solve for x
    x = 4,379,955,222.72/68,029.26
  6. Step 6: Final answer
    x = 64,383.40

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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.