Home / 60,105.38-90,162.94-20,662.52

Finding the Fourth Proportional to 60,105.38, 90,162.94 and 20,662.52

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Solution

The fourth proportional to 60,105.38, 90,162.94 and 20,662.52 is: 30,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,105.38 : 90,162.94 = 20,662.52 : x
  2. Step 2: Convert to fraction form
    60,105.38/90,162.94 = 20,662.52/x
  3. Step 3: Cross multiply
    60,105.38x = 90,162.94 × 20,662.52
  4. Step 4: Simplify right side
    60,105.38x = 1,862,993,551.01
  5. Step 5: Solve for x
    x = 1,862,993,551.01/60,105.38
  6. Step 6: Final answer
    x = 30,995.45

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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.