Home / 57,817.92-86,725.68-18,375.12

Finding the Fourth Proportional to 57,817.92, 86,725.68 and 18,375.12

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Solution

The fourth proportional to 57,817.92, 86,725.68 and 18,375.12 is: 27,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,817.92 : 86,725.68 = 18,375.12 : x
  2. Step 2: Convert to fraction form
    57,817.92/86,725.68 = 18,375.12/x
  3. Step 3: Cross multiply
    57,817.92x = 86,725.68 × 18,375.12
  4. Step 4: Simplify right side
    57,817.92x = 1,593,594,777.08
  5. Step 5: Solve for x
    x = 1,593,594,777.08/57,817.92
  6. Step 6: Final answer
    x = 27,562.30

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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.