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Finding the Fourth Proportional to 83,995.14, 125,995.14 and 21,665.64

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Solution

The fourth proportional to 83,995.14, 125,995.14 and 21,665.64 is: 32,499.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,995.14 : 125,995.14 = 21,665.64 : x
  2. Step 2: Convert to fraction form
    83,995.14/125,995.14 = 21,665.64/x
  3. Step 3: Cross multiply
    83,995.14x = 125,995.14 × 21,665.64
  4. Step 4: Simplify right side
    83,995.14x = 2,729,765,344.99
  5. Step 5: Solve for x
    x = 2,729,765,344.99/83,995.14
  6. Step 6: Final answer
    x = 32,499.09

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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.