Home / 79,308.35-109,388.18-67,352.75

Finding the Fourth Proportional to 79,308.35, 109,388.18 and 67,352.75

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Solution

The fourth proportional to 79,308.35, 109,388.18 and 67,352.75 is: 92,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.35 : 109,388.18 = 67,352.75 : x
  2. Step 2: Convert to fraction form
    79,308.35/109,388.18 = 67,352.75/x
  3. Step 3: Cross multiply
    79,308.35x = 109,388.18 × 67,352.75
  4. Step 4: Simplify right side
    79,308.35x = 7,367,594,403.73
  5. Step 5: Solve for x
    x = 7,367,594,403.73/79,308.35
  6. Step 6: Final answer
    x = 92,898.09

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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.