Home / 81,949.94-113,084.02-50,112.68

Finding the Fourth Proportional to 81,949.94, 113,084.02 and 50,112.68

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Solution

The fourth proportional to 81,949.94, 113,084.02 and 50,112.68 is: 69,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,949.94 : 113,084.02 = 50,112.68 : x
  2. Step 2: Convert to fraction form
    81,949.94/113,084.02 = 50,112.68/x
  3. Step 3: Cross multiply
    81,949.94x = 113,084.02 × 50,112.68
  4. Step 4: Simplify right side
    81,949.94x = 5,666,943,464.80
  5. Step 5: Solve for x
    x = 5,666,943,464.80/81,949.94
  6. Step 6: Final answer
    x = 69,151.29

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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.