Home / 68,619.20-102,799.20-35,225.60

Finding the Fourth Proportional to 68,619.20, 102,799.20 and 35,225.60

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Solution

The fourth proportional to 68,619.20, 102,799.20 and 35,225.60 is: 52,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619.20 : 102,799.20 = 35,225.60 : x
  2. Step 2: Convert to fraction form
    68,619.20/102,799.20 = 35,225.60/x
  3. Step 3: Cross multiply
    68,619.20x = 102,799.20 × 35,225.60
  4. Step 4: Simplify right side
    68,619.20x = 3,621,163,499.52
  5. Step 5: Solve for x
    x = 3,621,163,499.52/68,619.20
  6. Step 6: Final answer
    x = 52,771.87

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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.