Home / 57,707.33-86,570.57-20,257.69

Finding the Fourth Proportional to 57,707.33, 86,570.57 and 20,257.69

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Solution

The fourth proportional to 57,707.33, 86,570.57 and 20,257.69 is: 30,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,707.33 : 86,570.57 = 20,257.69 : x
  2. Step 2: Convert to fraction form
    57,707.33/86,570.57 = 20,257.69/x
  3. Step 3: Cross multiply
    57,707.33x = 86,570.57 × 20,257.69
  4. Step 4: Simplify right side
    57,707.33x = 1,753,719,452.47
  5. Step 5: Solve for x
    x = 1,753,719,452.47/57,707.33
  6. Step 6: Final answer
    x = 30,389.89

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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.