Home / 80,321.22-120,492.15-26,990.19

Finding the Fourth Proportional to 80,321.22, 120,492.15 and 26,990.19

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Solution

The fourth proportional to 80,321.22, 120,492.15 and 26,990.19 is: 40,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,321.22 : 120,492.15 = 26,990.19 : x
  2. Step 2: Convert to fraction form
    80,321.22/120,492.15 = 26,990.19/x
  3. Step 3: Cross multiply
    80,321.22x = 120,492.15 × 26,990.19
  4. Step 4: Simplify right side
    80,321.22x = 3,252,106,022.01
  5. Step 5: Solve for x
    x = 3,252,106,022.01/80,321.22
  6. Step 6: Final answer
    x = 40,488.75

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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.