Home / 77,569.72-116,357.10-21,414.04

Finding the Fourth Proportional to 77,569.72, 116,357.10 and 21,414.04

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Solution

The fourth proportional to 77,569.72, 116,357.10 and 21,414.04 is: 32,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,569.72 : 116,357.10 = 21,414.04 : x
  2. Step 2: Convert to fraction form
    77,569.72/116,357.10 = 21,414.04/x
  3. Step 3: Cross multiply
    77,569.72x = 116,357.10 × 21,414.04
  4. Step 4: Simplify right side
    77,569.72x = 2,491,675,593.68
  5. Step 5: Solve for x
    x = 2,491,675,593.68/77,569.72
  6. Step 6: Final answer
    x = 32,121.76

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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.