Home / 54,144.68-81,218.08-18,605.62

Finding the Fourth Proportional to 54,144.68, 81,218.08 and 18,605.62

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Solution

The fourth proportional to 54,144.68, 81,218.08 and 18,605.62 is: 27,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,144.68 : 81,218.08 = 18,605.62 : x
  2. Step 2: Convert to fraction form
    54,144.68/81,218.08 = 18,605.62/x
  3. Step 3: Cross multiply
    54,144.68x = 81,218.08 × 18,605.62
  4. Step 4: Simplify right side
    54,144.68x = 1,511,112,733.61
  5. Step 5: Solve for x
    x = 1,511,112,733.61/54,144.68
  6. Step 6: Final answer
    x = 27,908.79

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1.5x scale

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.