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Finding the Fourth Proportional to 68,832.68, 103,259.82 and 29,390

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Solution

The fourth proportional to 68,832.68, 103,259.82 and 29,390 is: 44,089.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,832.68 : 103,259.82 = 29,390 : x
  2. Step 2: Convert to fraction form
    68,832.68/103,259.82 = 29,390/x
  3. Step 3: Cross multiply
    68,832.68x = 103,259.82 × 29,390
  4. Step 4: Simplify right side
    68,832.68x = 3,034,806,109.80
  5. Step 5: Solve for x
    x = 3,034,806,109.80/68,832.68
  6. Step 6: Final answer
    x = 44,089.61

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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.