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Finding the Fourth Proportional to 68,064.69, 101,956.59 and 39,899.22

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Solution

The fourth proportional to 68,064.69, 101,956.59 and 39,899.22 is: 59,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,064.69 : 101,956.59 = 39,899.22 : x
  2. Step 2: Convert to fraction form
    68,064.69/101,956.59 = 39,899.22/x
  3. Step 3: Cross multiply
    68,064.69x = 101,956.59 × 39,899.22
  4. Step 4: Simplify right side
    68,064.69x = 4,067,988,414.86
  5. Step 5: Solve for x
    x = 4,067,988,414.86/68,064.69
  6. Step 6: Final answer
    x = 59,766.50

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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.