Home / 90,754.57-136,042.98-50,793.07

Finding the Fourth Proportional to 90,754.57, 136,042.98 and 50,793.07

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Solution

The fourth proportional to 90,754.57, 136,042.98 and 50,793.07 is: 76,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,754.57 : 136,042.98 = 50,793.07 : x
  2. Step 2: Convert to fraction form
    90,754.57/136,042.98 = 50,793.07/x
  3. Step 3: Cross multiply
    90,754.57x = 136,042.98 × 50,793.07
  4. Step 4: Simplify right side
    90,754.57x = 6,910,040,606.15
  5. Step 5: Solve for x
    x = 6,910,040,606.15/90,754.57
  6. Step 6: Final answer
    x = 76,139.86

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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.