Home / 87,736.97-121,072.32-51,930.32

Finding the Fourth Proportional to 87,736.97, 121,072.32 and 51,930.32

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Solution

The fourth proportional to 87,736.97, 121,072.32 and 51,930.32 is: 71,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,736.97 : 121,072.32 = 51,930.32 : x
  2. Step 2: Convert to fraction form
    87,736.97/121,072.32 = 51,930.32/x
  3. Step 3: Cross multiply
    87,736.97x = 121,072.32 × 51,930.32
  4. Step 4: Simplify right side
    87,736.97x = 6,287,323,715.38
  5. Step 5: Solve for x
    x = 6,287,323,715.38/87,736.97
  6. Step 6: Final answer
    x = 71,661.05

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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.