Home / 87,736.84-120,967.12-73,221.92

Finding the Fourth Proportional to 87,736.84, 120,967.12 and 73,221.92

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Solution

The fourth proportional to 87,736.84, 120,967.12 and 73,221.92 is: 100,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,736.84 : 120,967.12 = 73,221.92 : x
  2. Step 2: Convert to fraction form
    87,736.84/120,967.12 = 73,221.92/x
  3. Step 3: Cross multiply
    87,736.84x = 120,967.12 × 73,221.92
  4. Step 4: Simplify right side
    87,736.84x = 8,857,444,783.27
  5. Step 5: Solve for x
    x = 8,857,444,783.27/87,736.84
  6. Step 6: Final answer
    x = 100,954.68

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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.