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Finding the Fourth Proportional to 72,694.71, 109,006.50 and 29,992.20

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Solution

The fourth proportional to 72,694.71, 109,006.50 and 29,992.20 is: 44,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,694.71 : 109,006.50 = 29,992.20 : x
  2. Step 2: Convert to fraction form
    72,694.71/109,006.50 = 29,992.20/x
  3. Step 3: Cross multiply
    72,694.71x = 109,006.50 × 29,992.20
  4. Step 4: Simplify right side
    72,694.71x = 3,269,344,749.30
  5. Step 5: Solve for x
    x = 3,269,344,749.30/72,694.71
  6. Step 6: Final answer
    x = 44,973.63

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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.