Home / 68,631.20-102,817.20-35,237.60

Finding the Fourth Proportional to 68,631.20, 102,817.20 and 35,237.60

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Solution

The fourth proportional to 68,631.20, 102,817.20 and 35,237.60 is: 52,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,631.20 : 102,817.20 = 35,237.60 : x
  2. Step 2: Convert to fraction form
    68,631.20/102,817.20 = 35,237.60/x
  3. Step 3: Cross multiply
    68,631.20x = 102,817.20 × 35,237.60
  4. Step 4: Simplify right side
    68,631.20x = 3,623,031,366.72
  5. Step 5: Solve for x
    x = 3,623,031,366.72/68,631.20
  6. Step 6: Final answer
    x = 52,789.86

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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.