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Finding the Fourth Proportional to 62,879.53, 94,328.67 and 20,764.07

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Solution

The fourth proportional to 62,879.53, 94,328.67 and 20,764.07 is: 31,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,879.53 : 94,328.67 = 20,764.07 : x
  2. Step 2: Convert to fraction form
    62,879.53/94,328.67 = 20,764.07/x
  3. Step 3: Cross multiply
    62,879.53x = 94,328.67 × 20,764.07
  4. Step 4: Simplify right side
    62,879.53x = 1,958,647,106.89
  5. Step 5: Solve for x
    x = 1,958,647,106.89/62,879.53
  6. Step 6: Final answer
    x = 31,149.20

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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.