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Finding the Fourth Proportional to 57,490.79, 86,236.21 and 25,863.92

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Solution

The fourth proportional to 57,490.79, 86,236.21 and 25,863.92 is: 38,795.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.79 : 86,236.21 = 25,863.92 : x
  2. Step 2: Convert to fraction form
    57,490.79/86,236.21 = 25,863.92/x
  3. Step 3: Cross multiply
    57,490.79x = 86,236.21 × 25,863.92
  4. Step 4: Simplify right side
    57,490.79x = 2,230,405,940.70
  5. Step 5: Solve for x
    x = 2,230,405,940.70/57,490.79
  6. Step 6: Final answer
    x = 38,795.89

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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.