Home / 87,141.54-120,251.07-49,408.50

Finding the Fourth Proportional to 87,141.54, 120,251.07 and 49,408.50

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Solution

The fourth proportional to 87,141.54, 120,251.07 and 49,408.50 is: 68,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,141.54 : 120,251.07 = 49,408.50 : x
  2. Step 2: Convert to fraction form
    87,141.54/120,251.07 = 49,408.50/x
  3. Step 3: Cross multiply
    87,141.54x = 120,251.07 × 49,408.50
  4. Step 4: Simplify right side
    87,141.54x = 5,941,424,992.10
  5. Step 5: Solve for x
    x = 5,941,424,992.10/87,141.54
  6. Step 6: Final answer
    x = 68,181.32

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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.