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Finding the Fourth Proportional to 72,081, 108,046.20 and 24,682.12

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Solution

The fourth proportional to 72,081, 108,046.20 and 24,682.12 is: 36,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,081 : 108,046.20 = 24,682.12 : x
  2. Step 2: Convert to fraction form
    72,081/108,046.20 = 24,682.12/x
  3. Step 3: Cross multiply
    72,081x = 108,046.20 × 24,682.12
  4. Step 4: Simplify right side
    72,081x = 2,666,809,273.94
  5. Step 5: Solve for x
    x = 2,666,809,273.94/72,081
  6. Step 6: Final answer
    x = 36,997.40

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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.