Home / 63,786.20-95,679.30-19,412.60

Finding the Fourth Proportional to 63,786.20, 95,679.30 and 19,412.60

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Solution

The fourth proportional to 63,786.20, 95,679.30 and 19,412.60 is: 29,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,786.20 : 95,679.30 = 19,412.60 : x
  2. Step 2: Convert to fraction form
    63,786.20/95,679.30 = 19,412.60/x
  3. Step 3: Cross multiply
    63,786.20x = 95,679.30 × 19,412.60
  4. Step 4: Simplify right side
    63,786.20x = 1,857,383,979.18
  5. Step 5: Solve for x
    x = 1,857,383,979.18/63,786.20
  6. Step 6: Final answer
    x = 29,118.90

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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.