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Finding the Fourth Proportional to 84,890, 127,335 and 26,522

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Solution

The fourth proportional to 84,890, 127,335 and 26,522 is: 39,783

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890 : 127,335 = 26,522 : x
  2. Step 2: Convert to fraction form
    84,890/127,335 = 26,522/x
  3. Step 3: Cross multiply
    84,890x = 127,335 × 26,522
  4. Step 4: Simplify right side
    84,890x = 3,377,178,870
  5. Step 5: Solve for x
    x = 3,377,178,870/84,890
  6. Step 6: Final answer
    x = 39,783

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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.