Home / 79,268.31-109,387.37-43,457.54

Finding the Fourth Proportional to 79,268.31, 109,387.37 and 43,457.54

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Solution

The fourth proportional to 79,268.31, 109,387.37 and 43,457.54 is: 59,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.31 : 109,387.37 = 43,457.54 : x
  2. Step 2: Convert to fraction form
    79,268.31/109,387.37 = 43,457.54/x
  3. Step 3: Cross multiply
    79,268.31x = 109,387.37 × 43,457.54
  4. Step 4: Simplify right side
    79,268.31x = 4,753,705,243.05
  5. Step 5: Solve for x
    x = 4,753,705,243.05/79,268.31
  6. Step 6: Final answer
    x = 59,969.81

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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.