Home / 78,919.02-108,906.44-43,109.19

Finding the Fourth Proportional to 78,919.02, 108,906.44 and 43,109.19

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Solution

The fourth proportional to 78,919.02, 108,906.44 and 43,109.19 is: 59,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,919.02 : 108,906.44 = 43,109.19 : x
  2. Step 2: Convert to fraction form
    78,919.02/108,906.44 = 43,109.19/x
  3. Step 3: Cross multiply
    78,919.02x = 108,906.44 × 43,109.19
  4. Step 4: Simplify right side
    78,919.02x = 4,694,868,198.64
  5. Step 5: Solve for x
    x = 4,694,868,198.64/78,919.02
  6. Step 6: Final answer
    x = 59,489.69

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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.