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Finding the Fourth Proportional to 55,110.60, 82,601.10 and 28,801.80

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Solution

The fourth proportional to 55,110.60, 82,601.10 and 28,801.80 is: 43,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,110.60 : 82,601.10 = 28,801.80 : x
  2. Step 2: Convert to fraction form
    55,110.60/82,601.10 = 28,801.80/x
  3. Step 3: Cross multiply
    55,110.60x = 82,601.10 × 28,801.80
  4. Step 4: Simplify right side
    55,110.60x = 2,379,060,361.98
  5. Step 5: Solve for x
    x = 2,379,060,361.98/55,110.60
  6. Step 6: Final answer
    x = 43,168.83

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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.