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Finding the Fourth Proportional to 72,424.84, 108,600.22 and 30,293.52

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Solution

The fourth proportional to 72,424.84, 108,600.22 and 30,293.52 is: 45,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,424.84 : 108,600.22 = 30,293.52 : x
  2. Step 2: Convert to fraction form
    72,424.84/108,600.22 = 30,293.52/x
  3. Step 3: Cross multiply
    72,424.84x = 108,600.22 × 30,293.52
  4. Step 4: Simplify right side
    72,424.84x = 3,289,882,936.57
  5. Step 5: Solve for x
    x = 3,289,882,936.57/72,424.84
  6. Step 6: Final answer
    x = 45,424.79

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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.