Home / 81,974.28-122,899.04-34,603.86

Finding the Fourth Proportional to 81,974.28, 122,899.04 and 34,603.86

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Solution

The fourth proportional to 81,974.28, 122,899.04 and 34,603.86 is: 51,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,974.28 : 122,899.04 = 34,603.86 : x
  2. Step 2: Convert to fraction form
    81,974.28/122,899.04 = 34,603.86/x
  3. Step 3: Cross multiply
    81,974.28x = 122,899.04 × 34,603.86
  4. Step 4: Simplify right side
    81,974.28x = 4,252,781,174.29
  5. Step 5: Solve for x
    x = 4,252,781,174.29/81,974.28
  6. Step 6: Final answer
    x = 51,879.46

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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.