Home / 54,609.34-81,850.10-20,853.25

Finding the Fourth Proportional to 54,609.34, 81,850.10 and 20,853.25

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Solution

The fourth proportional to 54,609.34, 81,850.10 and 20,853.25 is: 31,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,609.34 : 81,850.10 = 20,853.25 : x
  2. Step 2: Convert to fraction form
    54,609.34/81,850.10 = 20,853.25/x
  3. Step 3: Cross multiply
    54,609.34x = 81,850.10 × 20,853.25
  4. Step 4: Simplify right side
    54,609.34x = 1,706,840,288.93
  5. Step 5: Solve for x
    x = 1,706,840,288.93/54,609.34
  6. Step 6: Final answer
    x = 31,255.46

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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.