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Finding the Fourth Proportional to 68,744, 94,852.32 and 40,452.80

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Solution

The fourth proportional to 68,744, 94,852.32 and 40,452.80 is: 55,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,744 : 94,852.32 = 40,452.80 : x
  2. Step 2: Convert to fraction form
    68,744/94,852.32 = 40,452.80/x
  3. Step 3: Cross multiply
    68,744x = 94,852.32 × 40,452.80
  4. Step 4: Simplify right side
    68,744x = 3,837,041,930.50
  5. Step 5: Solve for x
    x = 3,837,041,930.50/68,744
  6. Step 6: Final answer
    x = 55,816.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.