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Finding the Fourth Proportional to 72,966, 109,449 and 17,562

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Solution

The fourth proportional to 72,966, 109,449 and 17,562 is: 26,343

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,966 : 109,449 = 17,562 : x
  2. Step 2: Convert to fraction form
    72,966/109,449 = 17,562/x
  3. Step 3: Cross multiply
    72,966x = 109,449 × 17,562
  4. Step 4: Simplify right side
    72,966x = 1,922,143,338
  5. Step 5: Solve for x
    x = 1,922,143,338/72,966
  6. Step 6: Final answer
    x = 26,343

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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.