Home / 68,735.37-102,928.05-45,290.73

Finding the Fourth Proportional to 68,735.37, 102,928.05 and 45,290.73

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Solution

The fourth proportional to 68,735.37, 102,928.05 and 45,290.73 is: 67,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,735.37 : 102,928.05 = 45,290.73 : x
  2. Step 2: Convert to fraction form
    68,735.37/102,928.05 = 45,290.73/x
  3. Step 3: Cross multiply
    68,735.37x = 102,928.05 × 45,290.73
  4. Step 4: Simplify right side
    68,735.37x = 4,661,686,521.98
  5. Step 5: Solve for x
    x = 4,661,686,521.98/68,735.37
  6. Step 6: Final answer
    x = 67,820.78

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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.