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Finding the Fourth Proportional to 65,279.25, 90,089.01 and 36,994.05

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Solution

The fourth proportional to 65,279.25, 90,089.01 and 36,994.05 is: 51,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,279.25 : 90,089.01 = 36,994.05 : x
  2. Step 2: Convert to fraction form
    65,279.25/90,089.01 = 36,994.05/x
  3. Step 3: Cross multiply
    65,279.25x = 90,089.01 × 36,994.05
  4. Step 4: Simplify right side
    65,279.25x = 3,332,757,340.39
  5. Step 5: Solve for x
    x = 3,332,757,340.39/65,279.25
  6. Step 6: Final answer
    x = 51,053.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.