Home / 87,672.78-131,542.29-52,636.86

Finding the Fourth Proportional to 87,672.78, 131,542.29 and 52,636.86

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Solution

The fourth proportional to 87,672.78, 131,542.29 and 52,636.86 is: 78,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672.78 : 131,542.29 = 52,636.86 : x
  2. Step 2: Convert to fraction form
    87,672.78/131,542.29 = 52,636.86/x
  3. Step 3: Cross multiply
    87,672.78x = 131,542.29 × 52,636.86
  4. Step 4: Simplify right side
    87,672.78x = 6,923,973,102.81
  5. Step 5: Solve for x
    x = 6,923,973,102.81/87,672.78
  6. Step 6: Final answer
    x = 78,975.17

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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.