Home / 51,377.81-77,077.04-18,121.43

Finding the Fourth Proportional to 51,377.81, 77,077.04 and 18,121.43

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Solution

The fourth proportional to 51,377.81, 77,077.04 and 18,121.43 is: 27,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.81 : 77,077.04 = 18,121.43 : x
  2. Step 2: Convert to fraction form
    51,377.81/77,077.04 = 18,121.43/x
  3. Step 3: Cross multiply
    51,377.81x = 77,077.04 × 18,121.43
  4. Step 4: Simplify right side
    51,377.81x = 1,396,746,287.05
  5. Step 5: Solve for x
    x = 1,396,746,287.05/51,377.81
  6. Step 6: Final answer
    x = 27,185.79

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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.