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Finding the Fourth Proportional to 33,115.10, 49,672.65 and 8,491.10

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Solution

The fourth proportional to 33,115.10, 49,672.65 and 8,491.10 is: 12,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.10 : 49,672.65 = 8,491.10 : x
  2. Step 2: Convert to fraction form
    33,115.10/49,672.65 = 8,491.10/x
  3. Step 3: Cross multiply
    33,115.10x = 49,672.65 × 8,491.10
  4. Step 4: Simplify right side
    33,115.10x = 421,775,438.42
  5. Step 5: Solve for x
    x = 421,775,438.42/33,115.10
  6. Step 6: Final answer
    x = 12,736.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.