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Finding the Fourth Proportional to 61,262.67, 91,906.77 and 19,141.05

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Solution

The fourth proportional to 61,262.67, 91,906.77 and 19,141.05 is: 28,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,262.67 : 91,906.77 = 19,141.05 : x
  2. Step 2: Convert to fraction form
    61,262.67/91,906.77 = 19,141.05/x
  3. Step 3: Cross multiply
    61,262.67x = 91,906.77 × 19,141.05
  4. Step 4: Simplify right side
    61,262.67x = 1,759,192,079.91
  5. Step 5: Solve for x
    x = 1,759,192,079.91/61,262.67
  6. Step 6: Final answer
    x = 28,715.56

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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.