Home / 87,110.40-120,208.95-49,383.84

Finding the Fourth Proportional to 87,110.40, 120,208.95 and 49,383.84

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Solution

The fourth proportional to 87,110.40, 120,208.95 and 49,383.84 is: 68,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,110.40 : 120,208.95 = 49,383.84 : x
  2. Step 2: Convert to fraction form
    87,110.40/120,208.95 = 49,383.84/x
  3. Step 3: Cross multiply
    87,110.40x = 120,208.95 × 49,383.84
  4. Step 4: Simplify right side
    87,110.40x = 5,936,379,553.37
  5. Step 5: Solve for x
    x = 5,936,379,553.37/87,110.40
  6. Step 6: Final answer
    x = 68,147.77

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1.5x scale

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.