Home / 76,759.38-115,126.52-54,505.44

Finding the Fourth Proportional to 76,759.38, 115,126.52 and 54,505.44

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Solution

The fourth proportional to 76,759.38, 115,126.52 and 54,505.44 is: 81,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,759.38 : 115,126.52 = 54,505.44 : x
  2. Step 2: Convert to fraction form
    76,759.38/115,126.52 = 54,505.44/x
  3. Step 3: Cross multiply
    76,759.38x = 115,126.52 × 54,505.44
  4. Step 4: Simplify right side
    76,759.38x = 6,275,021,355.74
  5. Step 5: Solve for x
    x = 6,275,021,355.74/76,759.38
  6. Step 6: Final answer
    x = 81,749.24

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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.