Home / 82,166.20-123,089.40-54,001.30

Finding the Fourth Proportional to 82,166.20, 123,089.40 and 54,001.30

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Solution

The fourth proportional to 82,166.20, 123,089.40 and 54,001.30 is: 80,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,166.20 : 123,089.40 = 54,001.30 : x
  2. Step 2: Convert to fraction form
    82,166.20/123,089.40 = 54,001.30/x
  3. Step 3: Cross multiply
    82,166.20x = 123,089.40 × 54,001.30
  4. Step 4: Simplify right side
    82,166.20x = 6,646,987,616.22
  5. Step 5: Solve for x
    x = 6,646,987,616.22/82,166.20
  6. Step 6: Final answer
    x = 80,896.86

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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.