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Finding the Fourth Proportional to 89,091.98, 122,900.33 and 55,089.60

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Solution

The fourth proportional to 89,091.98, 122,900.33 and 55,089.60 is: 75,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,091.98 : 122,900.33 = 55,089.60 : x
  2. Step 2: Convert to fraction form
    89,091.98/122,900.33 = 55,089.60/x
  3. Step 3: Cross multiply
    89,091.98x = 122,900.33 × 55,089.60
  4. Step 4: Simplify right side
    89,091.98x = 6,770,529,129.62
  5. Step 5: Solve for x
    x = 6,770,529,129.62/89,091.98
  6. Step 6: Final answer
    x = 75,994.82

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