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Finding the Fourth Proportional to 44,112, 66,168 and 11,280

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Solution

The fourth proportional to 44,112, 66,168 and 11,280 is: 16,920

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,112 : 66,168 = 11,280 : x
  2. Step 2: Convert to fraction form
    44,112/66,168 = 11,280/x
  3. Step 3: Cross multiply
    44,112x = 66,168 × 11,280
  4. Step 4: Simplify right side
    44,112x = 746,375,040
  5. Step 5: Solve for x
    x = 746,375,040/44,112
  6. Step 6: Final answer
    x = 16,920

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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.