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Finding the Fourth Proportional to 65,866.77, 98,631 and 36,251.55

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Solution

The fourth proportional to 65,866.77, 98,631 and 36,251.55 is: 54,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,866.77 : 98,631 = 36,251.55 : x
  2. Step 2: Convert to fraction form
    65,866.77/98,631 = 36,251.55/x
  3. Step 3: Cross multiply
    65,866.77x = 98,631 × 36,251.55
  4. Step 4: Simplify right side
    65,866.77x = 3,575,526,628.05
  5. Step 5: Solve for x
    x = 3,575,526,628.05/65,866.77
  6. Step 6: Final answer
    x = 54,284.23

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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.