Home / 49,708.72-74,563.07-18,121.15

Finding the Fourth Proportional to 49,708.72, 74,563.07 and 18,121.15

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Solution

The fourth proportional to 49,708.72, 74,563.07 and 18,121.15 is: 27,181.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,708.72 : 74,563.07 = 18,121.15 : x
  2. Step 2: Convert to fraction form
    49,708.72/74,563.07 = 18,121.15/x
  3. Step 3: Cross multiply
    49,708.72x = 74,563.07 × 18,121.15
  4. Step 4: Simplify right side
    49,708.72x = 1,351,168,575.93
  5. Step 5: Solve for x
    x = 1,351,168,575.93/49,708.72
  6. Step 6: Final answer
    x = 27,181.72

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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.