Home / 54,474.39-81,716.90-21,197.16

Finding the Fourth Proportional to 54,474.39, 81,716.90 and 21,197.16

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Solution

The fourth proportional to 54,474.39, 81,716.90 and 21,197.16 is: 31,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,474.39 : 81,716.90 = 21,197.16 : x
  2. Step 2: Convert to fraction form
    54,474.39/81,716.90 = 21,197.16/x
  3. Step 3: Cross multiply
    54,474.39x = 81,716.90 × 21,197.16
  4. Step 4: Simplify right side
    54,474.39x = 1,732,166,098.02
  5. Step 5: Solve for x
    x = 1,732,166,098.02/54,474.39
  6. Step 6: Final answer
    x = 31,797.81

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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.