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Finding the Fourth Proportional to 69,692.65, 104,542.94 and 19,768.84

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Solution

The fourth proportional to 69,692.65, 104,542.94 and 19,768.84 is: 29,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,692.65 : 104,542.94 = 19,768.84 : x
  2. Step 2: Convert to fraction form
    69,692.65/104,542.94 = 19,768.84/x
  3. Step 3: Cross multiply
    69,692.65x = 104,542.94 × 19,768.84
  4. Step 4: Simplify right side
    69,692.65x = 2,066,692,442.05
  5. Step 5: Solve for x
    x = 2,066,692,442.05/69,692.65
  6. Step 6: Final answer
    x = 29,654.38

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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.