Home / 57,228.70-85,856.10-17,789.80

Finding the Fourth Proportional to 57,228.70, 85,856.10 and 17,789.80

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Solution

The fourth proportional to 57,228.70, 85,856.10 and 17,789.80 is: 26,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,228.70 : 85,856.10 = 17,789.80 : x
  2. Step 2: Convert to fraction form
    57,228.70/85,856.10 = 17,789.80/x
  3. Step 3: Cross multiply
    57,228.70x = 85,856.10 × 17,789.80
  4. Step 4: Simplify right side
    57,228.70x = 1,527,362,847.78
  5. Step 5: Solve for x
    x = 1,527,362,847.78/57,228.70
  6. Step 6: Final answer
    x = 26,688.76

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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.