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Finding the Fourth Proportional to 73,152.52, 109,729.26 and 20,563

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Solution

The fourth proportional to 73,152.52, 109,729.26 and 20,563 is: 30,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,152.52 : 109,729.26 = 20,563 : x
  2. Step 2: Convert to fraction form
    73,152.52/109,729.26 = 20,563/x
  3. Step 3: Cross multiply
    73,152.52x = 109,729.26 × 20,563
  4. Step 4: Simplify right side
    73,152.52x = 2,256,362,773.38
  5. Step 5: Solve for x
    x = 2,256,362,773.38/73,152.52
  6. Step 6: Final answer
    x = 30,844.63

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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.