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Finding the Fourth Proportional to 49,771.68, 68,679.93 and 30,648.39

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Solution

The fourth proportional to 49,771.68, 68,679.93 and 30,648.39 is: 42,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,771.68 : 68,679.93 = 30,648.39 : x
  2. Step 2: Convert to fraction form
    49,771.68/68,679.93 = 30,648.39/x
  3. Step 3: Cross multiply
    49,771.68x = 68,679.93 × 30,648.39
  4. Step 4: Simplify right side
    49,771.68x = 2,104,929,279.81
  5. Step 5: Solve for x
    x = 2,104,929,279.81/49,771.68
  6. Step 6: Final answer
    x = 42,291.71

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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.