Home / 81,982.97-113,185.70-53,737.86

Finding the Fourth Proportional to 81,982.97, 113,185.70 and 53,737.86

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Solution

The fourth proportional to 81,982.97, 113,185.70 and 53,737.86 is: 74,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,982.97 : 113,185.70 = 53,737.86 : x
  2. Step 2: Convert to fraction form
    81,982.97/113,185.70 = 53,737.86/x
  3. Step 3: Cross multiply
    81,982.97x = 113,185.70 × 53,737.86
  4. Step 4: Simplify right side
    81,982.97x = 6,082,357,960.15
  5. Step 5: Solve for x
    x = 6,082,357,960.15/81,982.97
  6. Step 6: Final answer
    x = 74,190.51

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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.