Home / 80,517.11-111,118.64-46,531.82

Finding the Fourth Proportional to 80,517.11, 111,118.64 and 46,531.82

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Solution

The fourth proportional to 80,517.11, 111,118.64 and 46,531.82 is: 64,216.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,517.11 : 111,118.64 = 46,531.82 : x
  2. Step 2: Convert to fraction form
    80,517.11/111,118.64 = 46,531.82/x
  3. Step 3: Cross multiply
    80,517.11x = 111,118.64 × 46,531.82
  4. Step 4: Simplify right side
    80,517.11x = 5,170,551,975.22
  5. Step 5: Solve for x
    x = 5,170,551,975.22/80,517.11
  6. Step 6: Final answer
    x = 64,216.81

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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.