Home / 54,911.09-82,390.21-17,474.20

Finding the Fourth Proportional to 54,911.09, 82,390.21 and 17,474.20

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Solution

The fourth proportional to 54,911.09, 82,390.21 and 17,474.20 is: 26,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,911.09 : 82,390.21 = 17,474.20 : x
  2. Step 2: Convert to fraction form
    54,911.09/82,390.21 = 17,474.20/x
  3. Step 3: Cross multiply
    54,911.09x = 82,390.21 × 17,474.20
  4. Step 4: Simplify right side
    54,911.09x = 1,439,702,757.92
  5. Step 5: Solve for x
    x = 1,439,702,757.92/54,911.09
  6. Step 6: Final answer
    x = 26,218.80

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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.