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Finding the Fourth Proportional to 69,313.97, 103,977.50 and 19,394.07

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Solution

The fourth proportional to 69,313.97, 103,977.50 and 19,394.07 is: 29,092.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,313.97 : 103,977.50 = 19,394.07 : x
  2. Step 2: Convert to fraction form
    69,313.97/103,977.50 = 19,394.07/x
  3. Step 3: Cross multiply
    69,313.97x = 103,977.50 × 19,394.07
  4. Step 4: Simplify right side
    69,313.97x = 2,016,546,816.45
  5. Step 5: Solve for x
    x = 2,016,546,816.45/69,313.97
  6. Step 6: Final answer
    x = 29,092.94

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1.5x scale

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.