Home / 54,086.09-81,129.19-14,105.04

Finding the Fourth Proportional to 54,086.09, 81,129.19 and 14,105.04

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Solution

The fourth proportional to 54,086.09, 81,129.19 and 14,105.04 is: 21,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.09 : 81,129.19 = 14,105.04 : x
  2. Step 2: Convert to fraction form
    54,086.09/81,129.19 = 14,105.04/x
  3. Step 3: Cross multiply
    54,086.09x = 81,129.19 × 14,105.04
  4. Step 4: Simplify right side
    54,086.09x = 1,144,330,470.12
  5. Step 5: Solve for x
    x = 1,144,330,470.12/54,086.09
  6. Step 6: Final answer
    x = 21,157.57

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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.