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Finding the Fourth Proportional to 68,877.62, 103,333.59 and 19,629.62

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Solution

The fourth proportional to 68,877.62, 103,333.59 and 19,629.62 is: 29,449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877.62 : 103,333.59 = 19,629.62 : x
  2. Step 2: Convert to fraction form
    68,877.62/103,333.59 = 19,629.62/x
  3. Step 3: Cross multiply
    68,877.62x = 103,333.59 × 19,629.62
  4. Step 4: Simplify right side
    68,877.62x = 2,028,399,104.94
  5. Step 5: Solve for x
    x = 2,028,399,104.94/68,877.62
  6. Step 6: Final answer
    x = 29,449.32

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1.5x scale

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.