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Finding the Fourth Proportional to 61,137.31, 91,699.81 and 16,768.52

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Solution

The fourth proportional to 61,137.31, 91,699.81 and 16,768.52 is: 25,151.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,137.31 : 91,699.81 = 16,768.52 : x
  2. Step 2: Convert to fraction form
    61,137.31/91,699.81 = 16,768.52/x
  3. Step 3: Cross multiply
    61,137.31x = 91,699.81 × 16,768.52
  4. Step 4: Simplify right side
    61,137.31x = 1,537,670,097.98
  5. Step 5: Solve for x
    x = 1,537,670,097.98/61,137.31
  6. Step 6: Final answer
    x = 25,151.09

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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.