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Finding the Fourth Proportional to 80,900.30, 111,642.94 and 45,092.59

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Solution

The fourth proportional to 80,900.30, 111,642.94 and 45,092.59 is: 62,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,900.30 : 111,642.94 = 45,092.59 : x
  2. Step 2: Convert to fraction form
    80,900.30/111,642.94 = 45,092.59/x
  3. Step 3: Cross multiply
    80,900.30x = 111,642.94 × 45,092.59
  4. Step 4: Simplify right side
    80,900.30x = 5,034,269,319.81
  5. Step 5: Solve for x
    x = 5,034,269,319.81/80,900.30
  6. Step 6: Final answer
    x = 62,228.07

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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.