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Finding the Fourth Proportional to 84,296.73, 126,507.30 and 39,923.40

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Solution

The fourth proportional to 84,296.73, 126,507.30 and 39,923.40 is: 59,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,296.73 : 126,507.30 = 39,923.40 : x
  2. Step 2: Convert to fraction form
    84,296.73/126,507.30 = 39,923.40/x
  3. Step 3: Cross multiply
    84,296.73x = 126,507.30 × 39,923.40
  4. Step 4: Simplify right side
    84,296.73x = 5,050,601,540.82
  5. Step 5: Solve for x
    x = 5,050,601,540.82/84,296.73
  6. Step 6: Final answer
    x = 59,914.56

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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.