Home / 75,846.11-113,769.20-20,442.11

Finding the Fourth Proportional to 75,846.11, 113,769.20 and 20,442.11

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Solution

The fourth proportional to 75,846.11, 113,769.20 and 20,442.11 is: 30,663.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,846.11 : 113,769.20 = 20,442.11 : x
  2. Step 2: Convert to fraction form
    75,846.11/113,769.20 = 20,442.11/x
  3. Step 3: Cross multiply
    75,846.11x = 113,769.20 × 20,442.11
  4. Step 4: Simplify right side
    75,846.11x = 2,325,681,983.27
  5. Step 5: Solve for x
    x = 2,325,681,983.27/75,846.11
  6. Step 6: Final answer
    x = 30,663.17

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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.