Home / 54,758.96-82,138.40-13,205.92

Finding the Fourth Proportional to 54,758.96, 82,138.40 and 13,205.92

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Solution

The fourth proportional to 54,758.96, 82,138.40 and 13,205.92 is: 19,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,758.96 : 82,138.40 = 13,205.92 : x
  2. Step 2: Convert to fraction form
    54,758.96/82,138.40 = 13,205.92/x
  3. Step 3: Cross multiply
    54,758.96x = 82,138.40 × 13,205.92
  4. Step 4: Simplify right side
    54,758.96x = 1,084,713,139.33
  5. Step 5: Solve for x
    x = 1,084,713,139.33/54,758.96
  6. Step 6: Final answer
    x = 19,808.87

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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.