Home / 54,412.38-81,629.01-18,872.33

Finding the Fourth Proportional to 54,412.38, 81,629.01 and 18,872.33

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Solution

The fourth proportional to 54,412.38, 81,629.01 and 18,872.33 is: 28,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,412.38 : 81,629.01 = 18,872.33 : x
  2. Step 2: Convert to fraction form
    54,412.38/81,629.01 = 18,872.33/x
  3. Step 3: Cross multiply
    54,412.38x = 81,629.01 × 18,872.33
  4. Step 4: Simplify right side
    54,412.38x = 1,540,529,206.15
  5. Step 5: Solve for x
    x = 1,540,529,206.15/54,412.38
  6. Step 6: Final answer
    x = 28,312.11

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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.