Home / 80,330.75-120,348.32-50,339.39

Finding the Fourth Proportional to 80,330.75, 120,348.32 and 50,339.39

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Solution

The fourth proportional to 80,330.75, 120,348.32 and 50,339.39 is: 75,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,330.75 : 120,348.32 = 50,339.39 : x
  2. Step 2: Convert to fraction form
    80,330.75/120,348.32 = 50,339.39/x
  3. Step 3: Cross multiply
    80,330.75x = 120,348.32 × 50,339.39
  4. Step 4: Simplify right side
    80,330.75x = 6,058,261,443.04
  5. Step 5: Solve for x
    x = 6,058,261,443.04/80,330.75
  6. Step 6: Final answer
    x = 75,416.47

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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.