Home / 55,299.60-76,310.16-31,422.96

Finding the Fourth Proportional to 55,299.60, 76,310.16 and 31,422.96

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Solution

The fourth proportional to 55,299.60, 76,310.16 and 31,422.96 is: 43,361.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,299.60 : 76,310.16 = 31,422.96 : x
  2. Step 2: Convert to fraction form
    55,299.60/76,310.16 = 31,422.96/x
  3. Step 3: Cross multiply
    55,299.60x = 76,310.16 × 31,422.96
  4. Step 4: Simplify right side
    55,299.60x = 2,397,891,105.27
  5. Step 5: Solve for x
    x = 2,397,891,105.27/55,299.60
  6. Step 6: Final answer
    x = 43,361.82

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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.