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Finding the Fourth Proportional to 73,745.44, 110,634.54 and 21,150.88

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Solution

The fourth proportional to 73,745.44, 110,634.54 and 21,150.88 is: 31,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,745.44 : 110,634.54 = 21,150.88 : x
  2. Step 2: Convert to fraction form
    73,745.44/110,634.54 = 21,150.88/x
  3. Step 3: Cross multiply
    73,745.44x = 110,634.54 × 21,150.88
  4. Step 4: Simplify right side
    73,745.44x = 2,340,017,879.40
  5. Step 5: Solve for x
    x = 2,340,017,879.40/73,745.44
  6. Step 6: Final answer
    x = 31,731.02

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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.