Home / 68,320.20-102,557.10-52,806.60

Finding the Fourth Proportional to 68,320.20, 102,557.10 and 52,806.60

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Solution

The fourth proportional to 68,320.20, 102,557.10 and 52,806.60 is: 79,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,320.20 : 102,557.10 = 52,806.60 : x
  2. Step 2: Convert to fraction form
    68,320.20/102,557.10 = 52,806.60/x
  3. Step 3: Cross multiply
    68,320.20x = 102,557.10 × 52,806.60
  4. Step 4: Simplify right side
    68,320.20x = 5,415,691,756.86
  5. Step 5: Solve for x
    x = 5,415,691,756.86/68,320.20
  6. Step 6: Final answer
    x = 79,269.26

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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.