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Finding the Fourth Proportional to 61,135.92, 91,704 and 16,763.28

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Solution

The fourth proportional to 61,135.92, 91,704 and 16,763.28 is: 25,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.92 : 91,704 = 16,763.28 : x
  2. Step 2: Convert to fraction form
    61,135.92/91,704 = 16,763.28/x
  3. Step 3: Cross multiply
    61,135.92x = 91,704 × 16,763.28
  4. Step 4: Simplify right side
    61,135.92x = 1,537,259,829.12
  5. Step 5: Solve for x
    x = 1,537,259,829.12/61,135.92
  6. Step 6: Final answer
    x = 25,144.95

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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.