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Finding the Fourth Proportional to 72,596.59, 100,180.05 and 40,333.29

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Solution

The fourth proportional to 72,596.59, 100,180.05 and 40,333.29 is: 55,658.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,596.59 : 100,180.05 = 40,333.29 : x
  2. Step 2: Convert to fraction form
    72,596.59/100,180.05 = 40,333.29/x
  3. Step 3: Cross multiply
    72,596.59x = 100,180.05 × 40,333.29
  4. Step 4: Simplify right side
    72,596.59x = 4,040,591,008.86
  5. Step 5: Solve for x
    x = 4,040,591,008.86/72,596.59
  6. Step 6: Final answer
    x = 55,658.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.