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Finding the Fourth Proportional to 81,999.60, 123,006.60 and 25,086.36

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Solution

The fourth proportional to 81,999.60, 123,006.60 and 25,086.36 is: 37,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999.60 : 123,006.60 = 25,086.36 : x
  2. Step 2: Convert to fraction form
    81,999.60/123,006.60 = 25,086.36/x
  3. Step 3: Cross multiply
    81,999.60x = 123,006.60 × 25,086.36
  4. Step 4: Simplify right side
    81,999.60x = 3,085,787,849.98
  5. Step 5: Solve for x
    x = 3,085,787,849.98/81,999.60
  6. Step 6: Final answer
    x = 37,631.74

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1.5x scale

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.