Home / 80,214.09-120,348.48-30,308.58

Finding the Fourth Proportional to 80,214.09, 120,348.48 and 30,308.58

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Solution

The fourth proportional to 80,214.09, 120,348.48 and 30,308.58 is: 45,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,214.09 : 120,348.48 = 30,308.58 : x
  2. Step 2: Convert to fraction form
    80,214.09/120,348.48 = 30,308.58/x
  3. Step 3: Cross multiply
    80,214.09x = 120,348.48 × 30,308.58
  4. Step 4: Simplify right side
    80,214.09x = 3,647,591,533.96
  5. Step 5: Solve for x
    x = 3,647,591,533.96/80,214.09
  6. Step 6: Final answer
    x = 45,473.20

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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.