Home / 79,918.25-109,486.38-76,926.92

Finding the Fourth Proportional to 79,918.25, 109,486.38 and 76,926.92

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Solution

The fourth proportional to 79,918.25, 109,486.38 and 76,926.92 is: 105,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,918.25 : 109,486.38 = 76,926.92 : x
  2. Step 2: Convert to fraction form
    79,918.25/109,486.38 = 76,926.92/x
  3. Step 3: Cross multiply
    79,918.25x = 109,486.38 × 76,926.92
  4. Step 4: Simplify right side
    79,918.25x = 8,422,449,736.39
  5. Step 5: Solve for x
    x = 8,422,449,736.39/79,918.25
  6. Step 6: Final answer
    x = 105,388.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.