Home / 51,270.72-76,993.92-31,665.12

Finding the Fourth Proportional to 51,270.72, 76,993.92 and 31,665.12

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Solution

The fourth proportional to 51,270.72, 76,993.92 and 31,665.12 is: 47,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,270.72 : 76,993.92 = 31,665.12 : x
  2. Step 2: Convert to fraction form
    51,270.72/76,993.92 = 31,665.12/x
  3. Step 3: Cross multiply
    51,270.72x = 76,993.92 × 31,665.12
  4. Step 4: Simplify right side
    51,270.72x = 2,438,021,716.07
  5. Step 5: Solve for x
    x = 2,438,021,716.07/51,270.72
  6. Step 6: Final answer
    x = 47,551.93

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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.