Home / 55,003.75-82,517.62-31,322.49

Finding the Fourth Proportional to 55,003.75, 82,517.62 and 31,322.49

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Solution

The fourth proportional to 55,003.75, 82,517.62 and 31,322.49 is: 46,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,003.75 : 82,517.62 = 31,322.49 : x
  2. Step 2: Convert to fraction form
    55,003.75/82,517.62 = 31,322.49/x
  3. Step 3: Cross multiply
    55,003.75x = 82,517.62 × 31,322.49
  4. Step 4: Simplify right side
    55,003.75x = 2,584,657,327.27
  5. Step 5: Solve for x
    x = 2,584,657,327.27/55,003.75
  6. Step 6: Final answer
    x = 46,990.57

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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.