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Finding the Fourth Proportional to 61,220.58, 91,839.63 and 19,104.44

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Solution

The fourth proportional to 61,220.58, 91,839.63 and 19,104.44 is: 28,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,220.58 : 91,839.63 = 19,104.44 : x
  2. Step 2: Convert to fraction form
    61,220.58/91,839.63 = 19,104.44/x
  3. Step 3: Cross multiply
    61,220.58x = 91,839.63 × 19,104.44
  4. Step 4: Simplify right side
    61,220.58x = 1,754,544,241.76
  5. Step 5: Solve for x
    x = 1,754,544,241.76/61,220.58
  6. Step 6: Final answer
    x = 28,659.39

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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.