Home / 57,144.28-85,663.92-19,695.46

Finding the Fourth Proportional to 57,144.28, 85,663.92 and 19,695.46

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Solution

The fourth proportional to 57,144.28, 85,663.92 and 19,695.46 is: 29,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,144.28 : 85,663.92 = 19,695.46 : x
  2. Step 2: Convert to fraction form
    57,144.28/85,663.92 = 19,695.46/x
  3. Step 3: Cross multiply
    57,144.28x = 85,663.92 × 19,695.46
  4. Step 4: Simplify right side
    57,144.28x = 1,687,190,309.80
  5. Step 5: Solve for x
    x = 1,687,190,309.80/57,144.28
  6. Step 6: Final answer
    x = 29,525.10

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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.