Home / 80,558.58-120,806.82-30,612.36

Finding the Fourth Proportional to 80,558.58, 120,806.82 and 30,612.36

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Solution

The fourth proportional to 80,558.58, 120,806.82 and 30,612.36 is: 45,906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,558.58 : 120,806.82 = 30,612.36 : x
  2. Step 2: Convert to fraction form
    80,558.58/120,806.82 = 30,612.36/x
  3. Step 3: Cross multiply
    80,558.58x = 120,806.82 × 30,612.36
  4. Step 4: Simplify right side
    80,558.58x = 3,698,181,864.30
  5. Step 5: Solve for x
    x = 3,698,181,864.30/80,558.58
  6. Step 6: Final answer
    x = 45,906.74

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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.