Home / 77,834.73-116,755.17-21,679.75

Finding the Fourth Proportional to 77,834.73, 116,755.17 and 21,679.75

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Solution

The fourth proportional to 77,834.73, 116,755.17 and 21,679.75 is: 32,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,834.73 : 116,755.17 = 21,679.75 : x
  2. Step 2: Convert to fraction form
    77,834.73/116,755.17 = 21,679.75/x
  3. Step 3: Cross multiply
    77,834.73x = 116,755.17 × 21,679.75
  4. Step 4: Simplify right side
    77,834.73x = 2,531,222,748.28
  5. Step 5: Solve for x
    x = 2,531,222,748.28/77,834.73
  6. Step 6: Final answer
    x = 32,520.48

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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.