Home / 84,917.76-117,076.32-54,648.96

Finding the Fourth Proportional to 84,917.76, 117,076.32 and 54,648.96

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Solution

The fourth proportional to 84,917.76, 117,076.32 and 54,648.96 is: 75,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,917.76 : 117,076.32 = 54,648.96 : x
  2. Step 2: Convert to fraction form
    84,917.76/117,076.32 = 54,648.96/x
  3. Step 3: Cross multiply
    84,917.76x = 117,076.32 × 54,648.96
  4. Step 4: Simplify right side
    84,917.76x = 6,398,099,128.63
  5. Step 5: Solve for x
    x = 6,398,099,128.63/84,917.76
  6. Step 6: Final answer
    x = 75,344.65

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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.