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Finding the Fourth Proportional to 30,135.93, 45,198.74 and 7,949.52

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Solution

The fourth proportional to 30,135.93, 45,198.74 and 7,949.52 is: 11,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,135.93 : 45,198.74 = 7,949.52 : x
  2. Step 2: Convert to fraction form
    30,135.93/45,198.74 = 7,949.52/x
  3. Step 3: Cross multiply
    30,135.93x = 45,198.74 × 7,949.52
  4. Step 4: Simplify right side
    30,135.93x = 359,308,247.86
  5. Step 5: Solve for x
    x = 359,308,247.86/30,135.93
  6. Step 6: Final answer
    x = 11,922.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.