Home / 82,782.61-124,198.11-26,621.46

Finding the Fourth Proportional to 82,782.61, 124,198.11 and 26,621.46

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Solution

The fourth proportional to 82,782.61, 124,198.11 and 26,621.46 is: 39,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,782.61 : 124,198.11 = 26,621.46 : x
  2. Step 2: Convert to fraction form
    82,782.61/124,198.11 = 26,621.46/x
  3. Step 3: Cross multiply
    82,782.61x = 124,198.11 × 26,621.46
  4. Step 4: Simplify right side
    82,782.61x = 3,306,335,017.44
  5. Step 5: Solve for x
    x = 3,306,335,017.44/82,782.61
  6. Step 6: Final answer
    x = 39,939.97

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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.