Home / 57,615.50-86,433.96-20,174.78

Finding the Fourth Proportional to 57,615.50, 86,433.96 and 20,174.78

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Solution

The fourth proportional to 57,615.50, 86,433.96 and 20,174.78 is: 30,265.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,615.50 : 86,433.96 = 20,174.78 : x
  2. Step 2: Convert to fraction form
    57,615.50/86,433.96 = 20,174.78/x
  3. Step 3: Cross multiply
    57,615.50x = 86,433.96 × 20,174.78
  4. Step 4: Simplify right side
    57,615.50x = 1,743,786,127.53
  5. Step 5: Solve for x
    x = 1,743,786,127.53/57,615.50
  6. Step 6: Final answer
    x = 30,265.92

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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.