Home / 81,185.78-112,028.46-50,961.44

Finding the Fourth Proportional to 81,185.78, 112,028.46 and 50,961.44

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Solution

The fourth proportional to 81,185.78, 112,028.46 and 50,961.44 is: 70,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,185.78 : 112,028.46 = 50,961.44 : x
  2. Step 2: Convert to fraction form
    81,185.78/112,028.46 = 50,961.44/x
  3. Step 3: Cross multiply
    81,185.78x = 112,028.46 × 50,961.44
  4. Step 4: Simplify right side
    81,185.78x = 5,709,131,642.58
  5. Step 5: Solve for x
    x = 5,709,131,642.58/81,185.78
  6. Step 6: Final answer
    x = 70,321.82

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1.5x scale

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.