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Finding the Fourth Proportional to 68,695.20, 103,042.80 and 33,703.20

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Solution

The fourth proportional to 68,695.20, 103,042.80 and 33,703.20 is: 50,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,695.20 : 103,042.80 = 33,703.20 : x
  2. Step 2: Convert to fraction form
    68,695.20/103,042.80 = 33,703.20/x
  3. Step 3: Cross multiply
    68,695.20x = 103,042.80 × 33,703.20
  4. Step 4: Simplify right side
    68,695.20x = 3,472,872,096.96
  5. Step 5: Solve for x
    x = 3,472,872,096.96/68,695.20
  6. Step 6: Final answer
    x = 50,554.80

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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.