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Finding the Fourth Proportional to 53,954.80, 80,932.20 and 42,801.10

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Solution

The fourth proportional to 53,954.80, 80,932.20 and 42,801.10 is: 64,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,954.80 : 80,932.20 = 42,801.10 : x
  2. Step 2: Convert to fraction form
    53,954.80/80,932.20 = 42,801.10/x
  3. Step 3: Cross multiply
    53,954.80x = 80,932.20 × 42,801.10
  4. Step 4: Simplify right side
    53,954.80x = 3,463,987,185.42
  5. Step 5: Solve for x
    x = 3,463,987,185.42/53,954.80
  6. Step 6: Final answer
    x = 64,201.65

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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.