Home / 87,674.05-120,982.98-49,431.52

Finding the Fourth Proportional to 87,674.05, 120,982.98 and 49,431.52

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Solution

The fourth proportional to 87,674.05, 120,982.98 and 49,431.52 is: 68,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,674.05 : 120,982.98 = 49,431.52 : x
  2. Step 2: Convert to fraction form
    87,674.05/120,982.98 = 49,431.52/x
  3. Step 3: Cross multiply
    87,674.05x = 120,982.98 × 49,431.52
  4. Step 4: Simplify right side
    87,674.05x = 5,980,372,595.53
  5. Step 5: Solve for x
    x = 5,980,372,595.53/87,674.05
  6. Step 6: Final answer
    x = 68,211.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.