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Finding the Fourth Proportional to 80,069.66, 119,929.53 and 40,558.94

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Solution

The fourth proportional to 80,069.66, 119,929.53 and 40,558.94 is: 60,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.66 : 119,929.53 = 40,558.94 : x
  2. Step 2: Convert to fraction form
    80,069.66/119,929.53 = 40,558.94/x
  3. Step 3: Cross multiply
    80,069.66x = 119,929.53 × 40,558.94
  4. Step 4: Simplify right side
    80,069.66x = 4,864,214,611.50
  5. Step 5: Solve for x
    x = 4,864,214,611.50/80,069.66
  6. Step 6: Final answer
    x = 60,749.78

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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.