Home / 87,324.78-120,521.25-53,352.90

Finding the Fourth Proportional to 87,324.78, 120,521.25 and 53,352.90

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Solution

The fourth proportional to 87,324.78, 120,521.25 and 53,352.90 is: 73,634.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,324.78 : 120,521.25 = 53,352.90 : x
  2. Step 2: Convert to fraction form
    87,324.78/120,521.25 = 53,352.90/x
  3. Step 3: Cross multiply
    87,324.78x = 120,521.25 × 53,352.90
  4. Step 4: Simplify right side
    87,324.78x = 6,430,158,500.43
  5. Step 5: Solve for x
    x = 6,430,158,500.43/87,324.78
  6. Step 6: Final answer
    x = 73,634.99

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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.