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Finding the Fourth Proportional to 66,819.13, 100,240.28 and 22,450.21

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Solution

The fourth proportional to 66,819.13, 100,240.28 and 22,450.21 is: 33,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,819.13 : 100,240.28 = 22,450.21 : x
  2. Step 2: Convert to fraction form
    66,819.13/100,240.28 = 22,450.21/x
  3. Step 3: Cross multiply
    66,819.13x = 100,240.28 × 22,450.21
  4. Step 4: Simplify right side
    66,819.13x = 2,250,415,224.21
  5. Step 5: Solve for x
    x = 2,250,415,224.21/66,819.13
  6. Step 6: Final answer
    x = 33,679.21

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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.