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Finding the Fourth Proportional to 89,571.82, 134,247 and 45,211.22

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Solution

The fourth proportional to 89,571.82, 134,247 and 45,211.22 is: 67,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,571.82 : 134,247 = 45,211.22 : x
  2. Step 2: Convert to fraction form
    89,571.82/134,247 = 45,211.22/x
  3. Step 3: Cross multiply
    89,571.82x = 134,247 × 45,211.22
  4. Step 4: Simplify right side
    89,571.82x = 6,069,470,651.34
  5. Step 5: Solve for x
    x = 6,069,470,651.34/89,571.82
  6. Step 6: Final answer
    x = 67,760.94

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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.