Home / 68,234.20-102,351.30-48,405.40

Finding the Fourth Proportional to 68,234.20, 102,351.30 and 48,405.40

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Solution

The fourth proportional to 68,234.20, 102,351.30 and 48,405.40 is: 72,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,234.20 : 102,351.30 = 48,405.40 : x
  2. Step 2: Convert to fraction form
    68,234.20/102,351.30 = 48,405.40/x
  3. Step 3: Cross multiply
    68,234.20x = 102,351.30 × 48,405.40
  4. Step 4: Simplify right side
    68,234.20x = 4,954,355,617.02
  5. Step 5: Solve for x
    x = 4,954,355,617.02/68,234.20
  6. Step 6: Final answer
    x = 72,608.10

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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.