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Finding the Fourth Proportional to 86,578.96, 129,770.10 and 36,627.88

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Solution

The fourth proportional to 86,578.96, 129,770.10 and 36,627.88 is: 54,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,578.96 : 129,770.10 = 36,627.88 : x
  2. Step 2: Convert to fraction form
    86,578.96/129,770.10 = 36,627.88/x
  3. Step 3: Cross multiply
    86,578.96x = 129,770.10 × 36,627.88
  4. Step 4: Simplify right side
    86,578.96x = 4,753,203,650.39
  5. Step 5: Solve for x
    x = 4,753,203,650.39/86,578.96
  6. Step 6: Final answer
    x = 54,900.22

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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.