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Finding the Fourth Proportional to 83,676.60, 125,514.90 and 50,434.20

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Solution

The fourth proportional to 83,676.60, 125,514.90 and 50,434.20 is: 75,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,676.60 : 125,514.90 = 50,434.20 : x
  2. Step 2: Convert to fraction form
    83,676.60/125,514.90 = 50,434.20/x
  3. Step 3: Cross multiply
    83,676.60x = 125,514.90 × 50,434.20
  4. Step 4: Simplify right side
    83,676.60x = 6,330,243,569.58
  5. Step 5: Solve for x
    x = 6,330,243,569.58/83,676.60
  6. Step 6: Final answer
    x = 75,651.30

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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.