Home / 80,084.52-120,108.15-30,169.62

Finding the Fourth Proportional to 80,084.52, 120,108.15 and 30,169.62

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Solution

The fourth proportional to 80,084.52, 120,108.15 and 30,169.62 is: 45,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,084.52 : 120,108.15 = 30,169.62 : x
  2. Step 2: Convert to fraction form
    80,084.52/120,108.15 = 30,169.62/x
  3. Step 3: Cross multiply
    80,084.52x = 120,108.15 × 30,169.62
  4. Step 4: Simplify right side
    80,084.52x = 3,623,617,244.40
  5. Step 5: Solve for x
    x = 3,623,617,244.40/80,084.52
  6. Step 6: Final answer
    x = 45,247.41

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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.