Home / 79,179.53-109,268.66-45,192.61

Finding the Fourth Proportional to 79,179.53, 109,268.66 and 45,192.61

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Solution

The fourth proportional to 79,179.53, 109,268.66 and 45,192.61 is: 62,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,179.53 : 109,268.66 = 45,192.61 : x
  2. Step 2: Convert to fraction form
    79,179.53/109,268.66 = 45,192.61/x
  3. Step 3: Cross multiply
    79,179.53x = 109,268.66 × 45,192.61
  4. Step 4: Simplify right side
    79,179.53x = 4,938,135,164.30
  5. Step 5: Solve for x
    x = 4,938,135,164.30/79,179.53
  6. Step 6: Final answer
    x = 62,366.31

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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.