Home / 320,679.23-481,046.38-84,021.93

Finding the Fourth Proportional to 320,679.23, 481,046.38 and 84,021.93

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Solution

The fourth proportional to 320,679.23, 481,046.38 and 84,021.93 is: 126,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,679.23 : 481,046.38 = 84,021.93 : x
  2. Step 2: Convert to fraction form
    320,679.23/481,046.38 = 84,021.93/x
  3. Step 3: Cross multiply
    320,679.23x = 481,046.38 × 84,021.93
  4. Step 4: Simplify right side
    320,679.23x = 40,418,445,057.06
  5. Step 5: Solve for x
    x = 40,418,445,057.06/320,679.23
  6. Step 6: Final answer
    x = 126,040.11

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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.