Home / 87,968.30-131,932.21-52,439.65

Finding the Fourth Proportional to 87,968.30, 131,932.21 and 52,439.65

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Solution

The fourth proportional to 87,968.30, 131,932.21 and 52,439.65 is: 78,647.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.30 : 131,932.21 = 52,439.65 : x
  2. Step 2: Convert to fraction form
    87,968.30/131,932.21 = 52,439.65/x
  3. Step 3: Cross multiply
    87,968.30x = 131,932.21 × 52,439.65
  4. Step 4: Simplify right side
    87,968.30x = 6,918,478,256.47
  5. Step 5: Solve for x
    x = 6,918,478,256.47/87,968.30
  6. Step 6: Final answer
    x = 78,647.41

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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.