Home / 51,583.50-71,185.23-30,375.81

Finding the Fourth Proportional to 51,583.50, 71,185.23 and 30,375.81

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Solution

The fourth proportional to 51,583.50, 71,185.23 and 30,375.81 is: 41,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,583.50 : 71,185.23 = 30,375.81 : x
  2. Step 2: Convert to fraction form
    51,583.50/71,185.23 = 30,375.81/x
  3. Step 3: Cross multiply
    51,583.50x = 71,185.23 × 30,375.81
  4. Step 4: Simplify right side
    51,583.50x = 2,162,309,021.29
  5. Step 5: Solve for x
    x = 2,162,309,021.29/51,583.50
  6. Step 6: Final answer
    x = 41,918.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.