Home / 54,486.46-81,708.36-21,202.12

Finding the Fourth Proportional to 54,486.46, 81,708.36 and 21,202.12

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Solution

The fourth proportional to 54,486.46, 81,708.36 and 21,202.12 is: 31,794.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,486.46 : 81,708.36 = 21,202.12 : x
  2. Step 2: Convert to fraction form
    54,486.46/81,708.36 = 21,202.12/x
  3. Step 3: Cross multiply
    54,486.46x = 81,708.36 × 21,202.12
  4. Step 4: Simplify right side
    54,486.46x = 1,732,390,453.72
  5. Step 5: Solve for x
    x = 1,732,390,453.72/54,486.46
  6. Step 6: Final answer
    x = 31,794.88

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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.