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Finding the Fourth Proportional to 89,978.58, 134,850.80 and 36,608.36

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Solution

The fourth proportional to 89,978.58, 134,850.80 and 36,608.36 is: 54,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,978.58 : 134,850.80 = 36,608.36 : x
  2. Step 2: Convert to fraction form
    89,978.58/134,850.80 = 36,608.36/x
  3. Step 3: Cross multiply
    89,978.58x = 134,850.80 × 36,608.36
  4. Step 4: Simplify right side
    89,978.58x = 4,936,666,049.95
  5. Step 5: Solve for x
    x = 4,936,666,049.95/89,978.58
  6. Step 6: Final answer
    x = 54,864.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.