Home / 55,146.35-76,115.48-31,286.99

Finding the Fourth Proportional to 55,146.35, 76,115.48 and 31,286.99

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Solution

The fourth proportional to 55,146.35, 76,115.48 and 31,286.99 is: 43,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,146.35 : 76,115.48 = 31,286.99 : x
  2. Step 2: Convert to fraction form
    55,146.35/76,115.48 = 31,286.99/x
  3. Step 3: Cross multiply
    55,146.35x = 76,115.48 × 31,286.99
  4. Step 4: Simplify right side
    55,146.35x = 2,381,423,724.59
  5. Step 5: Solve for x
    x = 2,381,423,724.59/55,146.35
  6. Step 6: Final answer
    x = 43,183.71

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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.