Home / 82,057.20-123,079.40-32,127.60

Finding the Fourth Proportional to 82,057.20, 123,079.40 and 32,127.60

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Solution

The fourth proportional to 82,057.20, 123,079.40 and 32,127.60 is: 48,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,057.20 : 123,079.40 = 32,127.60 : x
  2. Step 2: Convert to fraction form
    82,057.20/123,079.40 = 32,127.60/x
  3. Step 3: Cross multiply
    82,057.20x = 123,079.40 × 32,127.60
  4. Step 4: Simplify right side
    82,057.20x = 3,954,245,731.44
  5. Step 5: Solve for x
    x = 3,954,245,731.44/82,057.20
  6. Step 6: Final answer
    x = 48,188.89

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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.