Home / 77,926.06-116,889.15-18,761.73

Finding the Fourth Proportional to 77,926.06, 116,889.15 and 18,761.73

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Solution

The fourth proportional to 77,926.06, 116,889.15 and 18,761.73 is: 28,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.06 : 116,889.15 = 18,761.73 : x
  2. Step 2: Convert to fraction form
    77,926.06/116,889.15 = 18,761.73/x
  3. Step 3: Cross multiply
    77,926.06x = 116,889.15 × 18,761.73
  4. Step 4: Simplify right side
    77,926.06x = 2,193,042,672.23
  5. Step 5: Solve for x
    x = 2,193,042,672.23/77,926.06
  6. Step 6: Final answer
    x = 28,142.61

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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.