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Finding the Fourth Proportional to 66,836, 100,254 and 17,588

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Solution

The fourth proportional to 66,836, 100,254 and 17,588 is: 26,382

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,836 : 100,254 = 17,588 : x
  2. Step 2: Convert to fraction form
    66,836/100,254 = 17,588/x
  3. Step 3: Cross multiply
    66,836x = 100,254 × 17,588
  4. Step 4: Simplify right side
    66,836x = 1,763,267,352
  5. Step 5: Solve for x
    x = 1,763,267,352/66,836
  6. Step 6: Final answer
    x = 26,382

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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.