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Finding the Fourth Proportional to 65,551.77, 98,342.25 and 18,801

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Solution

The fourth proportional to 65,551.77, 98,342.25 and 18,801 is: 28,205.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,551.77 : 98,342.25 = 18,801 : x
  2. Step 2: Convert to fraction form
    65,551.77/98,342.25 = 18,801/x
  3. Step 3: Cross multiply
    65,551.77x = 98,342.25 × 18,801
  4. Step 4: Simplify right side
    65,551.77x = 1,848,932,642.25
  5. Step 5: Solve for x
    x = 1,848,932,642.25/65,551.77
  6. Step 6: Final answer
    x = 28,205.69

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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.