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Finding the Fourth Proportional to 68,291.60, 102,466.91 and 36,664.74

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Solution

The fourth proportional to 68,291.60, 102,466.91 and 36,664.74 is: 55,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,291.60 : 102,466.91 = 36,664.74 : x
  2. Step 2: Convert to fraction form
    68,291.60/102,466.91 = 36,664.74/x
  3. Step 3: Cross multiply
    68,291.60x = 102,466.91 × 36,664.74
  4. Step 4: Simplify right side
    68,291.60x = 3,756,922,705.42
  5. Step 5: Solve for x
    x = 3,756,922,705.42/68,291.60
  6. Step 6: Final answer
    x = 55,012.96

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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.