Home / 72,589.28-108,883.68-19,286.59

Finding the Fourth Proportional to 72,589.28, 108,883.68 and 19,286.59

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Solution

The fourth proportional to 72,589.28, 108,883.68 and 19,286.59 is: 28,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,589.28 : 108,883.68 = 19,286.59 : x
  2. Step 2: Convert to fraction form
    72,589.28/108,883.68 = 19,286.59/x
  3. Step 3: Cross multiply
    72,589.28x = 108,883.68 × 19,286.59
  4. Step 4: Simplify right side
    72,589.28x = 2,099,994,621.64
  5. Step 5: Solve for x
    x = 2,099,994,621.64/72,589.28
  6. Step 6: Final answer
    x = 28,929.82

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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.