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Finding the Fourth Proportional to 48,679.89, 73,020.29 and 19,100.71

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Solution

The fourth proportional to 48,679.89, 73,020.29 and 19,100.71 is: 28,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,679.89 : 73,020.29 = 19,100.71 : x
  2. Step 2: Convert to fraction form
    48,679.89/73,020.29 = 19,100.71/x
  3. Step 3: Cross multiply
    48,679.89x = 73,020.29 × 19,100.71
  4. Step 4: Simplify right side
    48,679.89x = 1,394,739,379.18
  5. Step 5: Solve for x
    x = 1,394,739,379.18/48,679.89
  6. Step 6: Final answer
    x = 28,651.25

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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.