Home / 79,378.35-119,067.64-19,406.69

Finding the Fourth Proportional to 79,378.35, 119,067.64 and 19,406.69

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Solution

The fourth proportional to 79,378.35, 119,067.64 and 19,406.69 is: 29,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.35 : 119,067.64 = 19,406.69 : x
  2. Step 2: Convert to fraction form
    79,378.35/119,067.64 = 19,406.69/x
  3. Step 3: Cross multiply
    79,378.35x = 119,067.64 × 19,406.69
  4. Step 4: Simplify right side
    79,378.35x = 2,310,708,581.16
  5. Step 5: Solve for x
    x = 2,310,708,581.16/79,378.35
  6. Step 6: Final answer
    x = 29,110.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.