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Finding the Fourth Proportional to 55,562, 76,660.41 and 31,679.96

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Solution

The fourth proportional to 55,562, 76,660.41 and 31,679.96 is: 43,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,562 : 76,660.41 = 31,679.96 : x
  2. Step 2: Convert to fraction form
    55,562/76,660.41 = 31,679.96/x
  3. Step 3: Cross multiply
    55,562x = 76,660.41 × 31,679.96
  4. Step 4: Simplify right side
    55,562x = 2,428,598,722.38
  5. Step 5: Solve for x
    x = 2,428,598,722.38/55,562
  6. Step 6: Final answer
    x = 43,709.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.