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Finding the Fourth Proportional to 72,067.44, 108,101.18 and 36,984.72

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Solution

The fourth proportional to 72,067.44, 108,101.18 and 36,984.72 is: 55,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.44 : 108,101.18 = 36,984.72 : x
  2. Step 2: Convert to fraction form
    72,067.44/108,101.18 = 36,984.72/x
  3. Step 3: Cross multiply
    72,067.44x = 108,101.18 × 36,984.72
  4. Step 4: Simplify right side
    72,067.44x = 3,998,091,689.05
  5. Step 5: Solve for x
    x = 3,998,091,689.05/72,067.44
  6. Step 6: Final answer
    x = 55,477.09

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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.