Home / 90,806.20-136,163.88-33,860.82

Finding the Fourth Proportional to 90,806.20, 136,163.88 and 33,860.82

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Solution

The fourth proportional to 90,806.20, 136,163.88 and 33,860.82 is: 50,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,806.20 : 136,163.88 = 33,860.82 : x
  2. Step 2: Convert to fraction form
    90,806.20/136,163.88 = 33,860.82/x
  3. Step 3: Cross multiply
    90,806.20x = 136,163.88 × 33,860.82
  4. Step 4: Simplify right side
    90,806.20x = 4,610,620,631.18
  5. Step 5: Solve for x
    x = 4,610,620,631.18/90,806.20
  6. Step 6: Final answer
    x = 50,774.29

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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.