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Finding the Fourth Proportional to 55,938.27, 83,940.27 and 20,880.66

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Solution

The fourth proportional to 55,938.27, 83,940.27 and 20,880.66 is: 31,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,938.27 : 83,940.27 = 20,880.66 : x
  2. Step 2: Convert to fraction form
    55,938.27/83,940.27 = 20,880.66/x
  3. Step 3: Cross multiply
    55,938.27x = 83,940.27 × 20,880.66
  4. Step 4: Simplify right side
    55,938.27x = 1,752,728,238.18
  5. Step 5: Solve for x
    x = 1,752,728,238.18/55,938.27
  6. Step 6: Final answer
    x = 31,333.26

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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.