Home / 81,049.15-121,605.63-41,046.19

Finding the Fourth Proportional to 81,049.15, 121,605.63 and 41,046.19

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Solution

The fourth proportional to 81,049.15, 121,605.63 and 41,046.19 is: 61,585.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,049.15 : 121,605.63 = 41,046.19 : x
  2. Step 2: Convert to fraction form
    81,049.15/121,605.63 = 41,046.19/x
  3. Step 3: Cross multiply
    81,049.15x = 121,605.63 × 41,046.19
  4. Step 4: Simplify right side
    81,049.15x = 4,991,447,794.05
  5. Step 5: Solve for x
    x = 4,991,447,794.05/81,049.15
  6. Step 6: Final answer
    x = 61,585.44

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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.