Home / 54,159.54-81,219.41-18,610.77

Finding the Fourth Proportional to 54,159.54, 81,219.41 and 18,610.77

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Solution

The fourth proportional to 54,159.54, 81,219.41 and 18,610.77 is: 27,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,159.54 : 81,219.41 = 18,610.77 : x
  2. Step 2: Convert to fraction form
    54,159.54/81,219.41 = 18,610.77/x
  3. Step 3: Cross multiply
    54,159.54x = 81,219.41 × 18,610.77
  4. Step 4: Simplify right side
    54,159.54x = 1,511,555,665.99
  5. Step 5: Solve for x
    x = 1,511,555,665.99/54,159.54
  6. Step 6: Final answer
    x = 27,909.32

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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.