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Finding the Fourth Proportional to 50,478.59, 75,753.02 and 20,896.58

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Solution

The fourth proportional to 50,478.59, 75,753.02 and 20,896.58 is: 31,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,478.59 : 75,753.02 = 20,896.58 : x
  2. Step 2: Convert to fraction form
    50,478.59/75,753.02 = 20,896.58/x
  3. Step 3: Cross multiply
    50,478.59x = 75,753.02 × 20,896.58
  4. Step 4: Simplify right side
    50,478.59x = 1,582,979,284.30
  5. Step 5: Solve for x
    x = 1,582,979,284.30/50,478.59
  6. Step 6: Final answer
    x = 31,359.42

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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.