Home / 55,179.20-82,768.80-51,242.60

Finding the Fourth Proportional to 55,179.20, 82,768.80 and 51,242.60

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Solution

The fourth proportional to 55,179.20, 82,768.80 and 51,242.60 is: 76,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,179.20 : 82,768.80 = 51,242.60 : x
  2. Step 2: Convert to fraction form
    55,179.20/82,768.80 = 51,242.60/x
  3. Step 3: Cross multiply
    55,179.20x = 82,768.80 × 51,242.60
  4. Step 4: Simplify right side
    55,179.20x = 4,241,288,510.88
  5. Step 5: Solve for x
    x = 4,241,288,510.88/55,179.20
  6. Step 6: Final answer
    x = 76,863.90

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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.