Home / 40,399.75-60,606.19-11,939.59

Finding the Fourth Proportional to 40,399.75, 60,606.19 and 11,939.59

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Solution

The fourth proportional to 40,399.75, 60,606.19 and 11,939.59 is: 17,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,399.75 : 60,606.19 = 11,939.59 : x
  2. Step 2: Convert to fraction form
    40,399.75/60,606.19 = 11,939.59/x
  3. Step 3: Cross multiply
    40,399.75x = 60,606.19 × 11,939.59
  4. Step 4: Simplify right side
    40,399.75x = 723,613,060.06
  5. Step 5: Solve for x
    x = 723,613,060.06/40,399.75
  6. Step 6: Final answer
    x = 17,911.33

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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.