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Finding the Fourth Proportional to 81,496.80, 122,265.99 and 25,337.39

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Solution

The fourth proportional to 81,496.80, 122,265.99 and 25,337.39 is: 38,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,496.80 : 122,265.99 = 25,337.39 : x
  2. Step 2: Convert to fraction form
    81,496.80/122,265.99 = 25,337.39/x
  3. Step 3: Cross multiply
    81,496.80x = 122,265.99 × 25,337.39
  4. Step 4: Simplify right side
    81,496.80x = 3,097,900,461.04
  5. Step 5: Solve for x
    x = 3,097,900,461.04/81,496.80
  6. Step 6: Final answer
    x = 38,012.54

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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.