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Finding the Fourth Proportional to 66,914.48, 100,375.56 and 20,162.48

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Solution

The fourth proportional to 66,914.48, 100,375.56 and 20,162.48 is: 30,244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914.48 : 100,375.56 = 20,162.48 : x
  2. Step 2: Convert to fraction form
    66,914.48/100,375.56 = 20,162.48/x
  3. Step 3: Cross multiply
    66,914.48x = 100,375.56 × 20,162.48
  4. Step 4: Simplify right side
    66,914.48x = 2,023,820,220.99
  5. Step 5: Solve for x
    x = 2,023,820,220.99/66,914.48
  6. Step 6: Final answer
    x = 30,244.88

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1.5x scale

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.