Home / 80,084.40-120,129-27,493.08

Finding the Fourth Proportional to 80,084.40, 120,129 and 27,493.08

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Solution

The fourth proportional to 80,084.40, 120,129 and 27,493.08 is: 41,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,084.40 : 120,129 = 27,493.08 : x
  2. Step 2: Convert to fraction form
    80,084.40/120,129 = 27,493.08/x
  3. Step 3: Cross multiply
    80,084.40x = 120,129 × 27,493.08
  4. Step 4: Simplify right side
    80,084.40x = 3,302,716,207.32
  5. Step 5: Solve for x
    x = 3,302,716,207.32/80,084.40
  6. Step 6: Final answer
    x = 41,240.44

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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.