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Finding the Fourth Proportional to 68,033.55, 93,879.50 and 39,351.05

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Solution

The fourth proportional to 68,033.55, 93,879.50 and 39,351.05 is: 54,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,033.55 : 93,879.50 = 39,351.05 : x
  2. Step 2: Convert to fraction form
    68,033.55/93,879.50 = 39,351.05/x
  3. Step 3: Cross multiply
    68,033.55x = 93,879.50 × 39,351.05
  4. Step 4: Simplify right side
    68,033.55x = 3,694,256,232.32
  5. Step 5: Solve for x
    x = 3,694,256,232.32/68,033.55
  6. Step 6: Final answer
    x = 54,300.51

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1.5x scale

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.