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Finding the Fourth Proportional to 61,194.60, 91,808.10 and 21,747.60

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Solution

The fourth proportional to 61,194.60, 91,808.10 and 21,747.60 is: 32,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,194.60 : 91,808.10 = 21,747.60 : x
  2. Step 2: Convert to fraction form
    61,194.60/91,808.10 = 21,747.60/x
  3. Step 3: Cross multiply
    61,194.60x = 91,808.10 × 21,747.60
  4. Step 4: Simplify right side
    61,194.60x = 1,996,605,835.56
  5. Step 5: Solve for x
    x = 1,996,605,835.56/61,194.60
  6. Step 6: Final answer
    x = 32,627.16

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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.