Home / 57,341.20-85,997.40-20,396.56

Finding the Fourth Proportional to 57,341.20, 85,997.40 and 20,396.56

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Solution

The fourth proportional to 57,341.20, 85,997.40 and 20,396.56 is: 30,589.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,341.20 : 85,997.40 = 20,396.56 : x
  2. Step 2: Convert to fraction form
    57,341.20/85,997.40 = 20,396.56/x
  3. Step 3: Cross multiply
    57,341.20x = 85,997.40 × 20,396.56
  4. Step 4: Simplify right side
    57,341.20x = 1,754,051,128.94
  5. Step 5: Solve for x
    x = 1,754,051,128.94/57,341.20
  6. Step 6: Final answer
    x = 30,589.72

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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.