Home / 57,199.39-85,785.42-19,760.80

Finding the Fourth Proportional to 57,199.39, 85,785.42 and 19,760.80

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Solution

The fourth proportional to 57,199.39, 85,785.42 and 19,760.80 is: 29,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,199.39 : 85,785.42 = 19,760.80 : x
  2. Step 2: Convert to fraction form
    57,199.39/85,785.42 = 19,760.80/x
  3. Step 3: Cross multiply
    57,199.39x = 85,785.42 × 19,760.80
  4. Step 4: Simplify right side
    57,199.39x = 1,695,188,527.54
  5. Step 5: Solve for x
    x = 1,695,188,527.54/57,199.39
  6. Step 6: Final answer
    x = 29,636.48

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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.