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Finding the Fourth Proportional to 68,172.27, 102,267.77 and 34,909.71

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Solution

The fourth proportional to 68,172.27, 102,267.77 and 34,909.71 is: 52,369.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,172.27 : 102,267.77 = 34,909.71 : x
  2. Step 2: Convert to fraction form
    68,172.27/102,267.77 = 34,909.71/x
  3. Step 3: Cross multiply
    68,172.27x = 102,267.77 × 34,909.71
  4. Step 4: Simplify right side
    68,172.27x = 3,570,138,018.50
  5. Step 5: Solve for x
    x = 3,570,138,018.50/68,172.27
  6. Step 6: Final answer
    x = 52,369.36

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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.