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Finding the Fourth Proportional to 45,451.22, 68,071 and 43,874.74

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Solution

The fourth proportional to 45,451.22, 68,071 and 43,874.74 is: 65,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,451.22 : 68,071 = 43,874.74 : x
  2. Step 2: Convert to fraction form
    45,451.22/68,071 = 43,874.74/x
  3. Step 3: Cross multiply
    45,451.22x = 68,071 × 43,874.74
  4. Step 4: Simplify right side
    45,451.22x = 2,986,597,426.54
  5. Step 5: Solve for x
    x = 2,986,597,426.54/45,451.22
  6. Step 6: Final answer
    x = 65,709.95

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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.