Home / 87,717.69-131,545.49-28,542.33

Finding the Fourth Proportional to 87,717.69, 131,545.49 and 28,542.33

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Solution

The fourth proportional to 87,717.69, 131,545.49 and 28,542.33 is: 42,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.69 : 131,545.49 = 28,542.33 : x
  2. Step 2: Convert to fraction form
    87,717.69/131,545.49 = 28,542.33/x
  3. Step 3: Cross multiply
    87,717.69x = 131,545.49 × 28,542.33
  4. Step 4: Simplify right side
    87,717.69x = 3,754,614,642.88
  5. Step 5: Solve for x
    x = 3,754,614,642.88/87,717.69
  6. Step 6: Final answer
    x = 42,803.39

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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.