Home / 75,617.82-113,418.09-20,218.14

Finding the Fourth Proportional to 75,617.82, 113,418.09 and 20,218.14

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Solution

The fourth proportional to 75,617.82, 113,418.09 and 20,218.14 is: 30,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,617.82 : 113,418.09 = 20,218.14 : x
  2. Step 2: Convert to fraction form
    75,617.82/113,418.09 = 20,218.14/x
  3. Step 3: Cross multiply
    75,617.82x = 113,418.09 × 20,218.14
  4. Step 4: Simplify right side
    75,617.82x = 2,293,102,822.15
  5. Step 5: Solve for x
    x = 2,293,102,822.15/75,617.82
  6. Step 6: Final answer
    x = 30,324.90

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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.