Home / 84,231.48-116,226.18-48,414.78

Finding the Fourth Proportional to 84,231.48, 116,226.18 and 48,414.78

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Solution

The fourth proportional to 84,231.48, 116,226.18 and 48,414.78 is: 66,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,231.48 : 116,226.18 = 48,414.78 : x
  2. Step 2: Convert to fraction form
    84,231.48/116,226.18 = 48,414.78/x
  3. Step 3: Cross multiply
    84,231.48x = 116,226.18 × 48,414.78
  4. Step 4: Simplify right side
    84,231.48x = 5,627,064,934.94
  5. Step 5: Solve for x
    x = 5,627,064,934.94/84,231.48
  6. Step 6: Final answer
    x = 66,804.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.