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Finding the Fourth Proportional to 55,161.77, 82,669.94 and 21,863.69

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Solution

The fourth proportional to 55,161.77, 82,669.94 and 21,863.69 is: 32,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161.77 : 82,669.94 = 21,863.69 : x
  2. Step 2: Convert to fraction form
    55,161.77/82,669.94 = 21,863.69/x
  3. Step 3: Cross multiply
    55,161.77x = 82,669.94 × 21,863.69
  4. Step 4: Simplify right side
    55,161.77x = 1,807,469,417.81
  5. Step 5: Solve for x
    x = 1,807,469,417.81/55,161.77
  6. Step 6: Final answer
    x = 32,766.71

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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.