Home / 68,455.80-94,469.04-40,161.60

Finding the Fourth Proportional to 68,455.80, 94,469.04 and 40,161.60

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Solution

The fourth proportional to 68,455.80, 94,469.04 and 40,161.60 is: 55,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,455.80 : 94,469.04 = 40,161.60 : x
  2. Step 2: Convert to fraction form
    68,455.80/94,469.04 = 40,161.60/x
  3. Step 3: Cross multiply
    68,455.80x = 94,469.04 × 40,161.60
  4. Step 4: Simplify right side
    68,455.80x = 3,794,027,796.86
  5. Step 5: Solve for x
    x = 3,794,027,796.86/68,455.80
  6. Step 6: Final answer
    x = 55,423.03

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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.