Home / 51,719.76-71,371.20-31,610.24

Finding the Fourth Proportional to 51,719.76, 71,371.20 and 31,610.24

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Solution

The fourth proportional to 51,719.76, 71,371.20 and 31,610.24 is: 43,620.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.76 : 71,371.20 = 31,610.24 : x
  2. Step 2: Convert to fraction form
    51,719.76/71,371.20 = 31,610.24/x
  3. Step 3: Cross multiply
    51,719.76x = 71,371.20 × 31,610.24
  4. Step 4: Simplify right side
    51,719.76x = 2,256,060,761.09
  5. Step 5: Solve for x
    x = 2,256,060,761.09/51,719.76
  6. Step 6: Final answer
    x = 43,620.87

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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.