Home / 68,917.15-95,107.79-38,703.12

Finding the Fourth Proportional to 68,917.15, 95,107.79 and 38,703.12

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Solution

The fourth proportional to 68,917.15, 95,107.79 and 38,703.12 is: 53,411.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,917.15 : 95,107.79 = 38,703.12 : x
  2. Step 2: Convert to fraction form
    68,917.15/95,107.79 = 38,703.12/x
  3. Step 3: Cross multiply
    68,917.15x = 95,107.79 × 38,703.12
  4. Step 4: Simplify right side
    68,917.15x = 3,680,967,738.11
  5. Step 5: Solve for x
    x = 3,680,967,738.11/68,917.15
  6. Step 6: Final answer
    x = 53,411.49

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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.