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Finding the Fourth Proportional to 54,942.82, 82,448.07 and 21,657.22

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Solution

The fourth proportional to 54,942.82, 82,448.07 and 21,657.22 is: 32,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,942.82 : 82,448.07 = 21,657.22 : x
  2. Step 2: Convert to fraction form
    54,942.82/82,448.07 = 21,657.22/x
  3. Step 3: Cross multiply
    54,942.82x = 82,448.07 × 21,657.22
  4. Step 4: Simplify right side
    54,942.82x = 1,785,595,990.57
  5. Step 5: Solve for x
    x = 1,785,595,990.57/54,942.82
  6. Step 6: Final answer
    x = 32,499.17

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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.