Home / 54,072.96-81,112.68-25,998.72

Finding the Fourth Proportional to 54,072.96, 81,112.68 and 25,998.72

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Solution

The fourth proportional to 54,072.96, 81,112.68 and 25,998.72 is: 38,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,072.96 : 81,112.68 = 25,998.72 : x
  2. Step 2: Convert to fraction form
    54,072.96/81,112.68 = 25,998.72/x
  3. Step 3: Cross multiply
    54,072.96x = 81,112.68 × 25,998.72
  4. Step 4: Simplify right side
    54,072.96x = 2,108,825,855.77
  5. Step 5: Solve for x
    x = 2,108,825,855.77/54,072.96
  6. Step 6: Final answer
    x = 38,999.64

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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.