Home / 87,823.88-131,756.78-28,659.66

Finding the Fourth Proportional to 87,823.88, 131,756.78 and 28,659.66

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Solution

The fourth proportional to 87,823.88, 131,756.78 and 28,659.66 is: 42,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,823.88 : 131,756.78 = 28,659.66 : x
  2. Step 2: Convert to fraction form
    87,823.88/131,756.78 = 28,659.66/x
  3. Step 3: Cross multiply
    87,823.88x = 131,756.78 × 28,659.66
  4. Step 4: Simplify right side
    87,823.88x = 3,776,104,589.14
  5. Step 5: Solve for x
    x = 3,776,104,589.14/87,823.88
  6. Step 6: Final answer
    x = 42,996.33

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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.