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Finding the Fourth Proportional to 68,722.20, 103,083.30 and 33,730.20

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Solution

The fourth proportional to 68,722.20, 103,083.30 and 33,730.20 is: 50,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722.20 : 103,083.30 = 33,730.20 : x
  2. Step 2: Convert to fraction form
    68,722.20/103,083.30 = 33,730.20/x
  3. Step 3: Cross multiply
    68,722.20x = 103,083.30 × 33,730.20
  4. Step 4: Simplify right side
    68,722.20x = 3,477,020,325.66
  5. Step 5: Solve for x
    x = 3,477,020,325.66/68,722.20
  6. Step 6: Final answer
    x = 50,595.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.