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Finding the Fourth Proportional to 45,860.81, 68,791.22 and 30,274.79

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Solution

The fourth proportional to 45,860.81, 68,791.22 and 30,274.79 is: 45,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,860.81 : 68,791.22 = 30,274.79 : x
  2. Step 2: Convert to fraction form
    45,860.81/68,791.22 = 30,274.79/x
  3. Step 3: Cross multiply
    45,860.81x = 68,791.22 × 30,274.79
  4. Step 4: Simplify right side
    45,860.81x = 2,082,639,739.34
  5. Step 5: Solve for x
    x = 2,082,639,739.34/45,860.81
  6. Step 6: Final answer
    x = 45,412.19

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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.