Home / 79,419.33-119,686.77-71,531.73

Finding the Fourth Proportional to 79,419.33, 119,686.77 and 71,531.73

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Solution

The fourth proportional to 79,419.33, 119,686.77 and 71,531.73 is: 107,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419.33 : 119,686.77 = 71,531.73 : x
  2. Step 2: Convert to fraction form
    79,419.33/119,686.77 = 71,531.73/x
  3. Step 3: Cross multiply
    79,419.33x = 119,686.77 × 71,531.73
  4. Step 4: Simplify right side
    79,419.33x = 8,561,401,716.21
  5. Step 5: Solve for x
    x = 8,561,401,716.21/79,419.33
  6. Step 6: Final answer
    x = 107,799.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.