Home / 82,370.52-123,555.78-20,040.48

Finding the Fourth Proportional to 82,370.52, 123,555.78 and 20,040.48

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Solution

The fourth proportional to 82,370.52, 123,555.78 and 20,040.48 is: 30,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,370.52 : 123,555.78 = 20,040.48 : x
  2. Step 2: Convert to fraction form
    82,370.52/123,555.78 = 20,040.48/x
  3. Step 3: Cross multiply
    82,370.52x = 123,555.78 × 20,040.48
  4. Step 4: Simplify right side
    82,370.52x = 2,476,117,137.97
  5. Step 5: Solve for x
    x = 2,476,117,137.97/82,370.52
  6. Step 6: Final answer
    x = 30,060.72

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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.