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Finding the Fourth Proportional to 72,145.34, 108,229.66 and 22,225.44

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Solution

The fourth proportional to 72,145.34, 108,229.66 and 22,225.44 is: 33,341.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,145.34 : 108,229.66 = 22,225.44 : x
  2. Step 2: Convert to fraction form
    72,145.34/108,229.66 = 22,225.44/x
  3. Step 3: Cross multiply
    72,145.34x = 108,229.66 × 22,225.44
  4. Step 4: Simplify right side
    72,145.34x = 2,405,451,814.55
  5. Step 5: Solve for x
    x = 2,405,451,814.55/72,145.34
  6. Step 6: Final answer
    x = 33,341.75

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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.