Home / 87,564.97-131,323.52-31,394.64

Finding the Fourth Proportional to 87,564.97, 131,323.52 and 31,394.64

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Solution

The fourth proportional to 87,564.97, 131,323.52 and 31,394.64 is: 47,083.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,564.97 : 131,323.52 = 31,394.64 : x
  2. Step 2: Convert to fraction form
    87,564.97/131,323.52 = 31,394.64/x
  3. Step 3: Cross multiply
    87,564.97x = 131,323.52 × 31,394.64
  4. Step 4: Simplify right side
    87,564.97x = 4,122,854,633.93
  5. Step 5: Solve for x
    x = 4,122,854,633.93/87,564.97
  6. Step 6: Final answer
    x = 47,083.38

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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.