Home / 87,511.82-120,775.38-53,542.94

Finding the Fourth Proportional to 87,511.82, 120,775.38 and 53,542.94

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Solution

The fourth proportional to 87,511.82, 120,775.38 and 53,542.94 is: 73,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,511.82 : 120,775.38 = 53,542.94 : x
  2. Step 2: Convert to fraction form
    87,511.82/120,775.38 = 53,542.94/x
  3. Step 3: Cross multiply
    87,511.82x = 120,775.38 × 53,542.94
  4. Step 4: Simplify right side
    87,511.82x = 6,466,668,924.82
  5. Step 5: Solve for x
    x = 6,466,668,924.82/87,511.82
  6. Step 6: Final answer
    x = 73,894.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.