Home / 54,219.12-81,331.56-16,805.04

Finding the Fourth Proportional to 54,219.12, 81,331.56 and 16,805.04

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Solution

The fourth proportional to 54,219.12, 81,331.56 and 16,805.04 is: 25,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.12 : 81,331.56 = 16,805.04 : x
  2. Step 2: Convert to fraction form
    54,219.12/81,331.56 = 16,805.04/x
  3. Step 3: Cross multiply
    54,219.12x = 81,331.56 × 16,805.04
  4. Step 4: Simplify right side
    54,219.12x = 1,366,780,119.06
  5. Step 5: Solve for x
    x = 1,366,780,119.06/54,219.12
  6. Step 6: Final answer
    x = 25,208.45

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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.