Home / 55,288-76,297.46-31,414.70

Finding the Fourth Proportional to 55,288, 76,297.46 and 31,414.70

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Solution

The fourth proportional to 55,288, 76,297.46 and 31,414.70 is: 43,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,288 : 76,297.46 = 31,414.70 : x
  2. Step 2: Convert to fraction form
    55,288/76,297.46 = 31,414.70/x
  3. Step 3: Cross multiply
    55,288x = 76,297.46 × 31,414.70
  4. Step 4: Simplify right side
    55,288x = 2,396,861,816.66
  5. Step 5: Solve for x
    x = 2,396,861,816.66/55,288
  6. Step 6: Final answer
    x = 43,352.30

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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.