Home / 54,857.91-82,219.53-31,185.30

Finding the Fourth Proportional to 54,857.91, 82,219.53 and 31,185.30

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Solution

The fourth proportional to 54,857.91, 82,219.53 and 31,185.30 is: 46,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,857.91 : 82,219.53 = 31,185.30 : x
  2. Step 2: Convert to fraction form
    54,857.91/82,219.53 = 31,185.30/x
  3. Step 3: Cross multiply
    54,857.91x = 82,219.53 × 31,185.30
  4. Step 4: Simplify right side
    54,857.91x = 2,564,040,708.91
  5. Step 5: Solve for x
    x = 2,564,040,708.91/54,857.91
  6. Step 6: Final answer
    x = 46,739.67

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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.