Home / 54,679.53-82,019.29-31,289.43

Finding the Fourth Proportional to 54,679.53, 82,019.29 and 31,289.43

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Solution

The fourth proportional to 54,679.53, 82,019.29 and 31,289.43 is: 46,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.53 : 82,019.29 = 31,289.43 : x
  2. Step 2: Convert to fraction form
    54,679.53/82,019.29 = 31,289.43/x
  3. Step 3: Cross multiply
    54,679.53x = 82,019.29 × 31,289.43
  4. Step 4: Simplify right side
    54,679.53x = 2,566,336,833.10
  5. Step 5: Solve for x
    x = 2,566,336,833.10/54,679.53
  6. Step 6: Final answer
    x = 46,934.14

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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.