Home / 87,917.94-121,286.54-52,087.58

Finding the Fourth Proportional to 87,917.94, 121,286.54 and 52,087.58

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Solution

The fourth proportional to 87,917.94, 121,286.54 and 52,087.58 is: 71,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,917.94 : 121,286.54 = 52,087.58 : x
  2. Step 2: Convert to fraction form
    87,917.94/121,286.54 = 52,087.58/x
  3. Step 3: Cross multiply
    87,917.94x = 121,286.54 × 52,087.58
  4. Step 4: Simplify right side
    87,917.94x = 6,317,522,355.17
  5. Step 5: Solve for x
    x = 6,317,522,355.17/87,917.94
  6. Step 6: Final answer
    x = 71,857.03

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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.