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Finding the Fourth Proportional to 72,340.70, 108,527.87 and 22,418.15

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Solution

The fourth proportional to 72,340.70, 108,527.87 and 22,418.15 is: 33,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.70 : 108,527.87 = 22,418.15 : x
  2. Step 2: Convert to fraction form
    72,340.70/108,527.87 = 22,418.15/x
  3. Step 3: Cross multiply
    72,340.70x = 108,527.87 × 22,418.15
  4. Step 4: Simplify right side
    72,340.70x = 2,432,993,582.25
  5. Step 5: Solve for x
    x = 2,432,993,582.25/72,340.70
  6. Step 6: Final answer
    x = 33,632.43

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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.