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Finding the Fourth Proportional to 44,011, 66,016.50 and 19,387

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Solution

The fourth proportional to 44,011, 66,016.50 and 19,387 is: 29,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,011 : 66,016.50 = 19,387 : x
  2. Step 2: Convert to fraction form
    44,011/66,016.50 = 19,387/x
  3. Step 3: Cross multiply
    44,011x = 66,016.50 × 19,387
  4. Step 4: Simplify right side
    44,011x = 1,279,861,885.50
  5. Step 5: Solve for x
    x = 1,279,861,885.50/44,011
  6. Step 6: Final answer
    x = 29,080.50

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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.