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Finding the Fourth Proportional to 65,988.73, 91,043.02 and 37,305.61

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Solution

The fourth proportional to 65,988.73, 91,043.02 and 37,305.61 is: 51,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.73 : 91,043.02 = 37,305.61 : x
  2. Step 2: Convert to fraction form
    65,988.73/91,043.02 = 37,305.61/x
  3. Step 3: Cross multiply
    65,988.73x = 91,043.02 × 37,305.61
  4. Step 4: Simplify right side
    65,988.73x = 3,396,415,397.34
  5. Step 5: Solve for x
    x = 3,396,415,397.34/65,988.73
  6. Step 6: Final answer
    x = 51,469.63

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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.