Home / 51,205.78-76,755.90-19,607.21

Finding the Fourth Proportional to 51,205.78, 76,755.90 and 19,607.21

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Solution

The fourth proportional to 51,205.78, 76,755.90 and 19,607.21 is: 29,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,205.78 : 76,755.90 = 19,607.21 : x
  2. Step 2: Convert to fraction form
    51,205.78/76,755.90 = 19,607.21/x
  3. Step 3: Cross multiply
    51,205.78x = 76,755.90 × 19,607.21
  4. Step 4: Simplify right side
    51,205.78x = 1,504,969,027.62
  5. Step 5: Solve for x
    x = 1,504,969,027.62/51,205.78
  6. Step 6: Final answer
    x = 29,390.61

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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.