Home / 66,821.04-100,231.92-20,073.60

Finding the Fourth Proportional to 66,821.04, 100,231.92 and 20,073.60

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Solution

The fourth proportional to 66,821.04, 100,231.92 and 20,073.60 is: 30,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.04 : 100,231.92 = 20,073.60 : x
  2. Step 2: Convert to fraction form
    66,821.04/100,231.92 = 20,073.60/x
  3. Step 3: Cross multiply
    66,821.04x = 100,231.92 × 20,073.60
  4. Step 4: Simplify right side
    66,821.04x = 2,012,015,469.31
  5. Step 5: Solve for x
    x = 2,012,015,469.31/66,821.04
  6. Step 6: Final answer
    x = 30,110.51

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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.