Home / 87,971.08-131,936.38-52,442.43

Finding the Fourth Proportional to 87,971.08, 131,936.38 and 52,442.43

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Solution

The fourth proportional to 87,971.08, 131,936.38 and 52,442.43 is: 78,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.08 : 131,936.38 = 52,442.43 : x
  2. Step 2: Convert to fraction form
    87,971.08/131,936.38 = 52,442.43/x
  3. Step 3: Cross multiply
    87,971.08x = 131,936.38 × 52,442.43
  4. Step 4: Simplify right side
    87,971.08x = 6,919,064,241.50
  5. Step 5: Solve for x
    x = 6,919,064,241.50/87,971.08
  6. Step 6: Final answer
    x = 78,651.58

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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.