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Finding the Fourth Proportional to 72,657.27, 108,972.18 and 22,729.86

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Solution

The fourth proportional to 72,657.27, 108,972.18 and 22,729.86 is: 34,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,657.27 : 108,972.18 = 22,729.86 : x
  2. Step 2: Convert to fraction form
    72,657.27/108,972.18 = 22,729.86/x
  3. Step 3: Cross multiply
    72,657.27x = 108,972.18 × 22,729.86
  4. Step 4: Simplify right side
    72,657.27x = 2,476,922,395.29
  5. Step 5: Solve for x
    x = 2,476,922,395.29/72,657.27
  6. Step 6: Final answer
    x = 34,090.50

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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.