Home / 65,921.28-98,898.12-19,174.56

Finding the Fourth Proportional to 65,921.28, 98,898.12 and 19,174.56

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Solution

The fourth proportional to 65,921.28, 98,898.12 and 19,174.56 is: 28,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,921.28 : 98,898.12 = 19,174.56 : x
  2. Step 2: Convert to fraction form
    65,921.28/98,898.12 = 19,174.56/x
  3. Step 3: Cross multiply
    65,921.28x = 98,898.12 × 19,174.56
  4. Step 4: Simplify right side
    65,921.28x = 1,896,327,935.83
  5. Step 5: Solve for x
    x = 1,896,327,935.83/65,921.28
  6. Step 6: Final answer
    x = 28,766.55

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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.