Home / 66,517.20-99,754.20-22,136.40

Finding the Fourth Proportional to 66,517.20, 99,754.20 and 22,136.40

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Solution

The fourth proportional to 66,517.20, 99,754.20 and 22,136.40 is: 33,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517.20 : 99,754.20 = 22,136.40 : x
  2. Step 2: Convert to fraction form
    66,517.20/99,754.20 = 22,136.40/x
  3. Step 3: Cross multiply
    66,517.20x = 99,754.20 × 22,136.40
  4. Step 4: Simplify right side
    66,517.20x = 2,208,198,872.88
  5. Step 5: Solve for x
    x = 2,208,198,872.88/66,517.20
  6. Step 6: Final answer
    x = 33,197.41

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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.