Home / 81,883.06-122,627.76-46,716.10

Finding the Fourth Proportional to 81,883.06, 122,627.76 and 46,716.10

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Solution

The fourth proportional to 81,883.06, 122,627.76 and 46,716.10 is: 69,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,883.06 : 122,627.76 = 46,716.10 : x
  2. Step 2: Convert to fraction form
    81,883.06/122,627.76 = 46,716.10/x
  3. Step 3: Cross multiply
    81,883.06x = 122,627.76 × 46,716.10
  4. Step 4: Simplify right side
    81,883.06x = 5,728,690,217.18
  5. Step 5: Solve for x
    x = 5,728,690,217.18/81,883.06
  6. Step 6: Final answer
    x = 69,961.85

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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.