Home / 66,080.22-91,189.20-35,865.60

Finding the Fourth Proportional to 66,080.22, 91,189.20 and 35,865.60

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Solution

The fourth proportional to 66,080.22, 91,189.20 and 35,865.60 is: 49,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,080.22 : 91,189.20 = 35,865.60 : x
  2. Step 2: Convert to fraction form
    66,080.22/91,189.20 = 35,865.60/x
  3. Step 3: Cross multiply
    66,080.22x = 91,189.20 × 35,865.60
  4. Step 4: Simplify right side
    66,080.22x = 3,270,555,371.52
  5. Step 5: Solve for x
    x = 3,270,555,371.52/66,080.22
  6. Step 6: Final answer
    x = 49,493.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.