Home / 53,905.20-80,857.80-49,968.60

Finding the Fourth Proportional to 53,905.20, 80,857.80 and 49,968.60

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Solution

The fourth proportional to 53,905.20, 80,857.80 and 49,968.60 is: 74,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,905.20 : 80,857.80 = 49,968.60 : x
  2. Step 2: Convert to fraction form
    53,905.20/80,857.80 = 49,968.60/x
  3. Step 3: Cross multiply
    53,905.20x = 80,857.80 × 49,968.60
  4. Step 4: Simplify right side
    53,905.20x = 4,040,351,065.08
  5. Step 5: Solve for x
    x = 4,040,351,065.08/53,905.20
  6. Step 6: Final answer
    x = 74,952.90

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Similar ratio
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1.5x scale

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.