Home / 87,035.79-120,109.19-49,310.04

Finding the Fourth Proportional to 87,035.79, 120,109.19 and 49,310.04

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Solution

The fourth proportional to 87,035.79, 120,109.19 and 49,310.04 is: 68,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,035.79 : 120,109.19 = 49,310.04 : x
  2. Step 2: Convert to fraction form
    87,035.79/120,109.19 = 49,310.04/x
  3. Step 3: Cross multiply
    87,035.79x = 120,109.19 × 49,310.04
  4. Step 4: Simplify right side
    87,035.79x = 5,922,588,716.72
  5. Step 5: Solve for x
    x = 5,922,588,716.72/87,035.79
  6. Step 6: Final answer
    x = 68,047.74

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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.