Home / 43,121.33-64,660.11-19,727.72

Finding the Fourth Proportional to 43,121.33, 64,660.11 and 19,727.72

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Solution

The fourth proportional to 43,121.33, 64,660.11 and 19,727.72 is: 29,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,121.33 : 64,660.11 = 19,727.72 : x
  2. Step 2: Convert to fraction form
    43,121.33/64,660.11 = 19,727.72/x
  3. Step 3: Cross multiply
    43,121.33x = 64,660.11 × 19,727.72
  4. Step 4: Simplify right side
    43,121.33x = 1,275,596,390.45
  5. Step 5: Solve for x
    x = 1,275,596,390.45/43,121.33
  6. Step 6: Final answer
    x = 29,581.57

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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.