Home / 87,291.52-120,463.12-49,566.56

Finding the Fourth Proportional to 87,291.52, 120,463.12 and 49,566.56

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Solution

The fourth proportional to 87,291.52, 120,463.12 and 49,566.56 is: 68,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,291.52 : 120,463.12 = 49,566.56 : x
  2. Step 2: Convert to fraction form
    87,291.52/120,463.12 = 49,566.56/x
  3. Step 3: Cross multiply
    87,291.52x = 120,463.12 × 49,566.56
  4. Step 4: Simplify right side
    87,291.52x = 5,970,942,465.27
  5. Step 5: Solve for x
    x = 5,970,942,465.27/87,291.52
  6. Step 6: Final answer
    x = 68,402.32

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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.