Home / 54,165.93-81,240.66-20,881.14

Finding the Fourth Proportional to 54,165.93, 81,240.66 and 20,881.14

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Solution

The fourth proportional to 54,165.93, 81,240.66 and 20,881.14 is: 31,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,165.93 : 81,240.66 = 20,881.14 : x
  2. Step 2: Convert to fraction form
    54,165.93/81,240.66 = 20,881.14/x
  3. Step 3: Cross multiply
    54,165.93x = 81,240.66 × 20,881.14
  4. Step 4: Simplify right side
    54,165.93x = 1,696,397,595.15
  5. Step 5: Solve for x
    x = 1,696,397,595.15/54,165.93
  6. Step 6: Final answer
    x = 31,318.54

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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.