Home / 51,187.72-76,791.26-20,021

Finding the Fourth Proportional to 51,187.72, 76,791.26 and 20,021

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Solution

The fourth proportional to 51,187.72, 76,791.26 and 20,021 is: 30,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.72 : 76,791.26 = 20,021 : x
  2. Step 2: Convert to fraction form
    51,187.72/76,791.26 = 20,021/x
  3. Step 3: Cross multiply
    51,187.72x = 76,791.26 × 20,021
  4. Step 4: Simplify right side
    51,187.72x = 1,537,437,816.46
  5. Step 5: Solve for x
    x = 1,537,437,816.46/51,187.72
  6. Step 6: Final answer
    x = 30,035.29

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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.