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Finding the Fourth Proportional to 80,134.87, 110,586.87 and 43,835.61

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Solution

The fourth proportional to 80,134.87, 110,586.87 and 43,835.61 is: 60,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,134.87 : 110,586.87 = 43,835.61 : x
  2. Step 2: Convert to fraction form
    80,134.87/110,586.87 = 43,835.61/x
  3. Step 3: Cross multiply
    80,134.87x = 110,586.87 × 43,835.61
  4. Step 4: Simplify right side
    80,134.87x = 4,847,642,386.06
  5. Step 5: Solve for x
    x = 4,847,642,386.06/80,134.87
  6. Step 6: Final answer
    x = 60,493.55

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Why These Related Problems?

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