Home / 81,913.43-122,856.48-22,755.08

Finding the Fourth Proportional to 81,913.43, 122,856.48 and 22,755.08

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Solution

The fourth proportional to 81,913.43, 122,856.48 and 22,755.08 is: 34,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913.43 : 122,856.48 = 22,755.08 : x
  2. Step 2: Convert to fraction form
    81,913.43/122,856.48 = 22,755.08/x
  3. Step 3: Cross multiply
    81,913.43x = 122,856.48 × 22,755.08
  4. Step 4: Simplify right side
    81,913.43x = 2,795,609,338.06
  5. Step 5: Solve for x
    x = 2,795,609,338.06/81,913.43
  6. Step 6: Final answer
    x = 34,128.83

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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.