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Finding the Fourth Proportional to 55,100.80, 82,620.48 and 20,041.60

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Solution

The fourth proportional to 55,100.80, 82,620.48 and 20,041.60 is: 30,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,100.80 : 82,620.48 = 20,041.60 : x
  2. Step 2: Convert to fraction form
    55,100.80/82,620.48 = 20,041.60/x
  3. Step 3: Cross multiply
    55,100.80x = 82,620.48 × 20,041.60
  4. Step 4: Simplify right side
    55,100.80x = 1,655,846,611.97
  5. Step 5: Solve for x
    x = 1,655,846,611.97/55,100.80
  6. Step 6: Final answer
    x = 30,051.23

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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.