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Finding the Fourth Proportional to 80,795, 111,505.74 and 47,289.08

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Solution

The fourth proportional to 80,795, 111,505.74 and 47,289.08 is: 65,263.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,795 : 111,505.74 = 47,289.08 : x
  2. Step 2: Convert to fraction form
    80,795/111,505.74 = 47,289.08/x
  3. Step 3: Cross multiply
    80,795x = 111,505.74 × 47,289.08
  4. Step 4: Simplify right side
    80,795x = 5,273,003,859.32
  5. Step 5: Solve for x
    x = 5,273,003,859.32/80,795
  6. Step 6: Final answer
    x = 65,263.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.