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Finding the Fourth Proportional to 45,250.61, 67,879.91 and 16,787.89

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Solution

The fourth proportional to 45,250.61, 67,879.91 and 16,787.89 is: 25,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,250.61 : 67,879.91 = 16,787.89 : x
  2. Step 2: Convert to fraction form
    45,250.61/67,879.91 = 16,787.89/x
  3. Step 3: Cross multiply
    45,250.61x = 67,879.91 × 16,787.89
  4. Step 4: Simplify right side
    45,250.61x = 1,139,560,378.35
  5. Step 5: Solve for x
    x = 1,139,560,378.35/45,250.61
  6. Step 6: Final answer
    x = 25,183.32

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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.