Home / 79,517.47-109,734.96-43,218.91

Finding the Fourth Proportional to 79,517.47, 109,734.96 and 43,218.91

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Solution

The fourth proportional to 79,517.47, 109,734.96 and 43,218.91 is: 59,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.47 : 109,734.96 = 43,218.91 : x
  2. Step 2: Convert to fraction form
    79,517.47/109,734.96 = 43,218.91/x
  3. Step 3: Cross multiply
    79,517.47x = 109,734.96 × 43,218.91
  4. Step 4: Simplify right side
    79,517.47x = 4,742,625,360.09
  5. Step 5: Solve for x
    x = 4,742,625,360.09/79,517.47
  6. Step 6: Final answer
    x = 59,642.56

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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.