Home / 81,985.24-122,874.24-43,939.95

Finding the Fourth Proportional to 81,985.24, 122,874.24 and 43,939.95

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Solution

The fourth proportional to 81,985.24, 122,874.24 and 43,939.95 is: 65,854.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,985.24 : 122,874.24 = 43,939.95 : x
  2. Step 2: Convert to fraction form
    81,985.24/122,874.24 = 43,939.95/x
  3. Step 3: Cross multiply
    81,985.24x = 122,874.24 × 43,939.95
  4. Step 4: Simplify right side
    81,985.24x = 5,399,087,961.89
  5. Step 5: Solve for x
    x = 5,399,087,961.89/81,985.24
  6. Step 6: Final answer
    x = 65,854.39

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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.