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Finding the Fourth Proportional to 80,535.66, 120,825.39 and 27,949.26

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Solution

The fourth proportional to 80,535.66, 120,825.39 and 27,949.26 is: 41,931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,535.66 : 120,825.39 = 27,949.26 : x
  2. Step 2: Convert to fraction form
    80,535.66/120,825.39 = 27,949.26/x
  3. Step 3: Cross multiply
    80,535.66x = 120,825.39 × 27,949.26
  4. Step 4: Simplify right side
    80,535.66x = 3,376,980,239.71
  5. Step 5: Solve for x
    x = 3,376,980,239.71/80,535.66
  6. Step 6: Final answer
    x = 41,931.49

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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.