Home / 51,076.56-76,583.52-21,081.48

Finding the Fourth Proportional to 51,076.56, 76,583.52 and 21,081.48

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Solution

The fourth proportional to 51,076.56, 76,583.52 and 21,081.48 is: 31,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,076.56 : 76,583.52 = 21,081.48 : x
  2. Step 2: Convert to fraction form
    51,076.56/76,583.52 = 21,081.48/x
  3. Step 3: Cross multiply
    51,076.56x = 76,583.52 × 21,081.48
  4. Step 4: Simplify right side
    51,076.56x = 1,614,493,945.21
  5. Step 5: Solve for x
    x = 1,614,493,945.21/51,076.56
  6. Step 6: Final answer
    x = 31,609.29

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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.