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Finding the Fourth Proportional to 61,481.60, 84,883.83 and 50,178.09

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Solution

The fourth proportional to 61,481.60, 84,883.83 and 50,178.09 is: 69,277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,481.60 : 84,883.83 = 50,178.09 : x
  2. Step 2: Convert to fraction form
    61,481.60/84,883.83 = 50,178.09/x
  3. Step 3: Cross multiply
    61,481.60x = 84,883.83 × 50,178.09
  4. Step 4: Simplify right side
    61,481.60x = 4,259,308,461.28
  5. Step 5: Solve for x
    x = 4,259,308,461.28/61,481.60
  6. Step 6: Final answer
    x = 69,277.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.