Home / 69,967.28-104,919.96-20,036

Finding the Fourth Proportional to 69,967.28, 104,919.96 and 20,036

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Solution

The fourth proportional to 69,967.28, 104,919.96 and 20,036 is: 30,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.28 : 104,919.96 = 20,036 : x
  2. Step 2: Convert to fraction form
    69,967.28/104,919.96 = 20,036/x
  3. Step 3: Cross multiply
    69,967.28x = 104,919.96 × 20,036
  4. Step 4: Simplify right side
    69,967.28x = 2,102,176,318.56
  5. Step 5: Solve for x
    x = 2,102,176,318.56/69,967.28
  6. Step 6: Final answer
    x = 30,045.13

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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.