Home / 72,618.20-108,932.74-20,027.18

Finding the Fourth Proportional to 72,618.20, 108,932.74 and 20,027.18

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Solution

The fourth proportional to 72,618.20, 108,932.74 and 20,027.18 is: 30,042.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,618.20 : 108,932.74 = 20,027.18 : x
  2. Step 2: Convert to fraction form
    72,618.20/108,932.74 = 20,027.18/x
  3. Step 3: Cross multiply
    72,618.20x = 108,932.74 × 20,027.18
  4. Step 4: Simplify right side
    72,618.20x = 2,181,615,591.87
  5. Step 5: Solve for x
    x = 2,181,615,591.87/72,618.20
  6. Step 6: Final answer
    x = 30,042.27

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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.