Home / 66,183.12-91,330.20-37,891.44

Finding the Fourth Proportional to 66,183.12, 91,330.20 and 37,891.44

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Solution

The fourth proportional to 66,183.12, 91,330.20 and 37,891.44 is: 52,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,183.12 : 91,330.20 = 37,891.44 : x
  2. Step 2: Convert to fraction form
    66,183.12/91,330.20 = 37,891.44/x
  3. Step 3: Cross multiply
    66,183.12x = 91,330.20 × 37,891.44
  4. Step 4: Simplify right side
    66,183.12x = 3,460,632,793.49
  5. Step 5: Solve for x
    x = 3,460,632,793.49/66,183.12
  6. Step 6: Final answer
    x = 52,288.75

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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.