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Finding the Fourth Proportional to 66,122.50, 99,183.75 and 16,874.50

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Solution

The fourth proportional to 66,122.50, 99,183.75 and 16,874.50 is: 25,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.50 : 99,183.75 = 16,874.50 : x
  2. Step 2: Convert to fraction form
    66,122.50/99,183.75 = 16,874.50/x
  3. Step 3: Cross multiply
    66,122.50x = 99,183.75 × 16,874.50
  4. Step 4: Simplify right side
    66,122.50x = 1,673,676,189.38
  5. Step 5: Solve for x
    x = 1,673,676,189.38/66,122.50
  6. Step 6: Final answer
    x = 25,311.75

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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.