Home / 79,067.07-109,117.40-45,543.87

Finding the Fourth Proportional to 79,067.07, 109,117.40 and 45,543.87

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Solution

The fourth proportional to 79,067.07, 109,117.40 and 45,543.87 is: 62,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,067.07 : 109,117.40 = 45,543.87 : x
  2. Step 2: Convert to fraction form
    79,067.07/109,117.40 = 45,543.87/x
  3. Step 3: Cross multiply
    79,067.07x = 109,117.40 × 45,543.87
  4. Step 4: Simplify right side
    79,067.07x = 4,969,628,452.62
  5. Step 5: Solve for x
    x = 4,969,628,452.62/79,067.07
  6. Step 6: Final answer
    x = 62,853.33

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1.5x scale

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.