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Finding the Fourth Proportional to 72,006.60, 107,958.70 and 27,616.20

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Solution

The fourth proportional to 72,006.60, 107,958.70 and 27,616.20 is: 41,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.60 : 107,958.70 = 27,616.20 : x
  2. Step 2: Convert to fraction form
    72,006.60/107,958.70 = 27,616.20/x
  3. Step 3: Cross multiply
    72,006.60x = 107,958.70 × 27,616.20
  4. Step 4: Simplify right side
    72,006.60x = 2,981,409,050.94
  5. Step 5: Solve for x
    x = 2,981,409,050.94/72,006.60
  6. Step 6: Final answer
    x = 41,404.66

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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.