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Finding the Fourth Proportional to 55,310, 76,355.04 and 38,327.12

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Solution

The fourth proportional to 55,310, 76,355.04 and 38,327.12 is: 52,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,310 : 76,355.04 = 38,327.12 : x
  2. Step 2: Convert to fraction form
    55,310/76,355.04 = 38,327.12/x
  3. Step 3: Cross multiply
    55,310x = 76,355.04 × 38,327.12
  4. Step 4: Simplify right side
    55,310x = 2,926,468,780.68
  5. Step 5: Solve for x
    x = 2,926,468,780.68/55,310
  6. Step 6: Final answer
    x = 52,910.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.