Home / 54,035.74-81,057.51-20,755.81

Finding the Fourth Proportional to 54,035.74, 81,057.51 and 20,755.81

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Solution

The fourth proportional to 54,035.74, 81,057.51 and 20,755.81 is: 31,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,035.74 : 81,057.51 = 20,755.81 : x
  2. Step 2: Convert to fraction form
    54,035.74/81,057.51 = 20,755.81/x
  3. Step 3: Cross multiply
    54,035.74x = 81,057.51 × 20,755.81
  4. Step 4: Simplify right side
    54,035.74x = 1,682,414,377.95
  5. Step 5: Solve for x
    x = 1,682,414,377.95/54,035.74
  6. Step 6: Final answer
    x = 31,135.21

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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.