Home / 84,795.04-126,939.76-51,414.56

Finding the Fourth Proportional to 84,795.04, 126,939.76 and 51,414.56

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Solution

The fourth proportional to 84,795.04, 126,939.76 and 51,414.56 is: 76,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,795.04 : 126,939.76 = 51,414.56 : x
  2. Step 2: Convert to fraction form
    84,795.04/126,939.76 = 51,414.56/x
  3. Step 3: Cross multiply
    84,795.04x = 126,939.76 × 51,414.56
  4. Step 4: Simplify right side
    84,795.04x = 6,526,551,906.91
  5. Step 5: Solve for x
    x = 6,526,551,906.91/84,795.04
  6. Step 6: Final answer
    x = 76,968.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.