Home / 76,406.22-114,610.36-20,251.76

Finding the Fourth Proportional to 76,406.22, 114,610.36 and 20,251.76

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Solution

The fourth proportional to 76,406.22, 114,610.36 and 20,251.76 is: 30,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,406.22 : 114,610.36 = 20,251.76 : x
  2. Step 2: Convert to fraction form
    76,406.22/114,610.36 = 20,251.76/x
  3. Step 3: Cross multiply
    76,406.22x = 114,610.36 × 20,251.76
  4. Step 4: Simplify right side
    76,406.22x = 2,321,060,918.52
  5. Step 5: Solve for x
    x = 2,321,060,918.52/76,406.22
  6. Step 6: Final answer
    x = 30,377.91

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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.