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Finding the Fourth Proportional to 80,611.56, 120,859.56 and 37,893.06

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Solution

The fourth proportional to 80,611.56, 120,859.56 and 37,893.06 is: 56,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,611.56 : 120,859.56 = 37,893.06 : x
  2. Step 2: Convert to fraction form
    80,611.56/120,859.56 = 37,893.06/x
  3. Step 3: Cross multiply
    80,611.56x = 120,859.56 × 37,893.06
  4. Step 4: Simplify right side
    80,611.56x = 4,579,738,558.65
  5. Step 5: Solve for x
    x = 4,579,738,558.65/80,611.56
  6. Step 6: Final answer
    x = 56,812.43

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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.