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Finding the Fourth Proportional to 86,174.46, 129,260.72 and 33,620.85

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Solution

The fourth proportional to 86,174.46, 129,260.72 and 33,620.85 is: 50,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.46 : 129,260.72 = 33,620.85 : x
  2. Step 2: Convert to fraction form
    86,174.46/129,260.72 = 33,620.85/x
  3. Step 3: Cross multiply
    86,174.46x = 129,260.72 × 33,620.85
  4. Step 4: Simplify right side
    86,174.46x = 4,345,855,362.06
  5. Step 5: Solve for x
    x = 4,345,855,362.06/86,174.46
  6. Step 6: Final answer
    x = 50,430.90

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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.