Home / 49,723.72-74,585.78-20,142.12

Finding the Fourth Proportional to 49,723.72, 74,585.78 and 20,142.12

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Solution

The fourth proportional to 49,723.72, 74,585.78 and 20,142.12 is: 30,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,723.72 : 74,585.78 = 20,142.12 : x
  2. Step 2: Convert to fraction form
    49,723.72/74,585.78 = 20,142.12/x
  3. Step 3: Cross multiply
    49,723.72x = 74,585.78 × 20,142.12
  4. Step 4: Simplify right side
    49,723.72x = 1,502,315,731.05
  5. Step 5: Solve for x
    x = 1,502,315,731.05/49,723.72
  6. Step 6: Final answer
    x = 30,213.26

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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.