Home / 50,729.70-76,110.78-21,150.66

Finding the Fourth Proportional to 50,729.70, 76,110.78 and 21,150.66

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Solution

The fourth proportional to 50,729.70, 76,110.78 and 21,150.66 is: 31,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.70 : 76,110.78 = 21,150.66 : x
  2. Step 2: Convert to fraction form
    50,729.70/76,110.78 = 21,150.66/x
  3. Step 3: Cross multiply
    50,729.70x = 76,110.78 × 21,150.66
  4. Step 4: Simplify right side
    50,729.70x = 1,609,793,230.11
  5. Step 5: Solve for x
    x = 1,609,793,230.11/50,729.70
  6. Step 6: Final answer
    x = 31,732.76

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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.