Home / 79,469.12-109,669.32-43,661.44

Finding the Fourth Proportional to 79,469.12, 109,669.32 and 43,661.44

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Solution

The fourth proportional to 79,469.12, 109,669.32 and 43,661.44 is: 60,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,469.12 : 109,669.32 = 43,661.44 : x
  2. Step 2: Convert to fraction form
    79,469.12/109,669.32 = 43,661.44/x
  3. Step 3: Cross multiply
    79,469.12x = 109,669.32 × 43,661.44
  4. Step 4: Simplify right side
    79,469.12x = 4,788,320,435.02
  5. Step 5: Solve for x
    x = 4,788,320,435.02/79,469.12
  6. Step 6: Final answer
    x = 60,253.85

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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.