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Finding the Fourth Proportional to 72,662, 108,934.16 and 22,716.36

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Solution

The fourth proportional to 72,662, 108,934.16 and 22,716.36 is: 34,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,662 : 108,934.16 = 22,716.36 : x
  2. Step 2: Convert to fraction form
    72,662/108,934.16 = 22,716.36/x
  3. Step 3: Cross multiply
    72,662x = 108,934.16 × 22,716.36
  4. Step 4: Simplify right side
    72,662x = 2,474,587,594.86
  5. Step 5: Solve for x
    x = 2,474,587,594.86/72,662
  6. Step 6: Final answer
    x = 34,056.14

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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.