Home / 91,939.70-126,869-51,650.30

Finding the Fourth Proportional to 91,939.70, 126,869 and 51,650.30

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Solution

The fourth proportional to 91,939.70, 126,869 and 51,650.30 is: 71,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.70 : 126,869 = 51,650.30 : x
  2. Step 2: Convert to fraction form
    91,939.70/126,869 = 51,650.30/x
  3. Step 3: Cross multiply
    91,939.70x = 126,869 × 51,650.30
  4. Step 4: Simplify right side
    91,939.70x = 6,552,821,910.70
  5. Step 5: Solve for x
    x = 6,552,821,910.70/91,939.70
  6. Step 6: Final answer
    x = 71,273.04

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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.