Home / 80,363.52-120,544.32-38,781.12

Finding the Fourth Proportional to 80,363.52, 120,544.32 and 38,781.12

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Solution

The fourth proportional to 80,363.52, 120,544.32 and 38,781.12 is: 58,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,363.52 : 120,544.32 = 38,781.12 : x
  2. Step 2: Convert to fraction form
    80,363.52/120,544.32 = 38,781.12/x
  3. Step 3: Cross multiply
    80,363.52x = 120,544.32 × 38,781.12
  4. Step 4: Simplify right side
    80,363.52x = 4,674,843,739.24
  5. Step 5: Solve for x
    x = 4,674,843,739.24/80,363.52
  6. Step 6: Final answer
    x = 58,171.22

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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.