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Finding the Fourth Proportional to 72,227.72, 108,379.34 and 29,564.80

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Solution

The fourth proportional to 72,227.72, 108,379.34 and 29,564.80 is: 44,362.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,227.72 : 108,379.34 = 29,564.80 : x
  2. Step 2: Convert to fraction form
    72,227.72/108,379.34 = 29,564.80/x
  3. Step 3: Cross multiply
    72,227.72x = 108,379.34 × 29,564.80
  4. Step 4: Simplify right side
    72,227.72x = 3,204,213,511.23
  5. Step 5: Solve for x
    x = 3,204,213,511.23/72,227.72
  6. Step 6: Final answer
    x = 44,362.66

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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.