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Finding the Fourth Proportional to 50,574.56, 75,829.44 and 21,012.80

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Solution

The fourth proportional to 50,574.56, 75,829.44 and 21,012.80 is: 31,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,574.56 : 75,829.44 = 21,012.80 : x
  2. Step 2: Convert to fraction form
    50,574.56/75,829.44 = 21,012.80/x
  3. Step 3: Cross multiply
    50,574.56x = 75,829.44 × 21,012.80
  4. Step 4: Simplify right side
    50,574.56x = 1,593,388,856.83
  5. Step 5: Solve for x
    x = 1,593,388,856.83/50,574.56
  6. Step 6: Final answer
    x = 31,505.74

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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.