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Finding the Fourth Proportional to 73,027.80, 109,455.30 and 30,907.80

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Solution

The fourth proportional to 73,027.80, 109,455.30 and 30,907.80 is: 46,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,027.80 : 109,455.30 = 30,907.80 : x
  2. Step 2: Convert to fraction form
    73,027.80/109,455.30 = 30,907.80/x
  3. Step 3: Cross multiply
    73,027.80x = 109,455.30 × 30,907.80
  4. Step 4: Simplify right side
    73,027.80x = 3,383,022,521.34
  5. Step 5: Solve for x
    x = 3,383,022,521.34/73,027.80
  6. Step 6: Final answer
    x = 46,325.13

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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.