Home / 87,914.97-121,315.59-49,677.84

Finding the Fourth Proportional to 87,914.97, 121,315.59 and 49,677.84

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Solution

The fourth proportional to 87,914.97, 121,315.59 and 49,677.84 is: 68,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,914.97 : 121,315.59 = 49,677.84 : x
  2. Step 2: Convert to fraction form
    87,914.97/121,315.59 = 49,677.84/x
  3. Step 3: Cross multiply
    87,914.97x = 121,315.59 × 49,677.84
  4. Step 4: Simplify right side
    87,914.97x = 6,026,696,469.53
  5. Step 5: Solve for x
    x = 6,026,696,469.53/87,914.97
  6. Step 6: Final answer
    x = 68,551.42

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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.