Home / 87,564.49-131,286.71-31,403.39

Finding the Fourth Proportional to 87,564.49, 131,286.71 and 31,403.39

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Solution

The fourth proportional to 87,564.49, 131,286.71 and 31,403.39 is: 47,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,564.49 : 131,286.71 = 31,403.39 : x
  2. Step 2: Convert to fraction form
    87,564.49/131,286.71 = 31,403.39/x
  3. Step 3: Cross multiply
    87,564.49x = 131,286.71 × 31,403.39
  4. Step 4: Simplify right side
    87,564.49x = 4,122,847,178.02
  5. Step 5: Solve for x
    x = 4,122,847,178.02/87,564.49
  6. Step 6: Final answer
    x = 47,083.55

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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.