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Finding the Fourth Proportional to 61,963.20, 85,509 and 33,668.28

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Solution

The fourth proportional to 61,963.20, 85,509 and 33,668.28 is: 46,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.20 : 85,509 = 33,668.28 : x
  2. Step 2: Convert to fraction form
    61,963.20/85,509 = 33,668.28/x
  3. Step 3: Cross multiply
    61,963.20x = 85,509 × 33,668.28
  4. Step 4: Simplify right side
    61,963.20x = 2,878,940,954.52
  5. Step 5: Solve for x
    x = 2,878,940,954.52/61,963.20
  6. Step 6: Final answer
    x = 46,462.11

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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.