Home / 84,940.62-126,867.78-76,923.45

Finding the Fourth Proportional to 84,940.62, 126,867.78 and 76,923.45

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Solution

The fourth proportional to 84,940.62, 126,867.78 and 76,923.45 is: 114,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.62 : 126,867.78 = 76,923.45 : x
  2. Step 2: Convert to fraction form
    84,940.62/126,867.78 = 76,923.45/x
  3. Step 3: Cross multiply
    84,940.62x = 126,867.78 × 76,923.45
  4. Step 4: Simplify right side
    84,940.62x = 9,759,107,331.44
  5. Step 5: Solve for x
    x = 9,759,107,331.44/84,940.62
  6. Step 6: Final answer
    x = 114,893.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.