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Finding the Fourth Proportional to 68,771, 103,157.42 and 22,023.88

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Solution

The fourth proportional to 68,771, 103,157.42 and 22,023.88 is: 33,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771 : 103,157.42 = 22,023.88 : x
  2. Step 2: Convert to fraction form
    68,771/103,157.42 = 22,023.88/x
  3. Step 3: Cross multiply
    68,771x = 103,157.42 × 22,023.88
  4. Step 4: Simplify right side
    68,771x = 2,271,926,639.19
  5. Step 5: Solve for x
    x = 2,271,926,639.19/68,771
  6. Step 6: Final answer
    x = 33,036.11

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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.