Home / 54,398.46-81,620.91-30,723.78

Finding the Fourth Proportional to 54,398.46, 81,620.91 and 30,723.78

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Solution

The fourth proportional to 54,398.46, 81,620.91 and 30,723.78 is: 46,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,398.46 : 81,620.91 = 30,723.78 : x
  2. Step 2: Convert to fraction form
    54,398.46/81,620.91 = 30,723.78/x
  3. Step 3: Cross multiply
    54,398.46x = 81,620.91 × 30,723.78
  4. Step 4: Simplify right side
    54,398.46x = 2,507,702,882.24
  5. Step 5: Solve for x
    x = 2,507,702,882.24/54,398.46
  6. Step 6: Final answer
    x = 46,098.78

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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.