Home / 57,520.68-86,306.12-20,107.59

Finding the Fourth Proportional to 57,520.68, 86,306.12 and 20,107.59

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Solution

The fourth proportional to 57,520.68, 86,306.12 and 20,107.59 is: 30,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,520.68 : 86,306.12 = 20,107.59 : x
  2. Step 2: Convert to fraction form
    57,520.68/86,306.12 = 20,107.59/x
  3. Step 3: Cross multiply
    57,520.68x = 86,306.12 × 20,107.59
  4. Step 4: Simplify right side
    57,520.68x = 1,735,408,325.25
  5. Step 5: Solve for x
    x = 1,735,408,325.25/57,520.68
  6. Step 6: Final answer
    x = 30,170.16

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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.