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Finding the Fourth Proportional to 50,454.52, 75,681.79 and 20,839.80

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Solution

The fourth proportional to 50,454.52, 75,681.79 and 20,839.80 is: 31,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,454.52 : 75,681.79 = 20,839.80 : x
  2. Step 2: Convert to fraction form
    50,454.52/75,681.79 = 20,839.80/x
  3. Step 3: Cross multiply
    50,454.52x = 75,681.79 × 20,839.80
  4. Step 4: Simplify right side
    50,454.52x = 1,577,193,367.24
  5. Step 5: Solve for x
    x = 1,577,193,367.24/50,454.52
  6. Step 6: Final answer
    x = 31,259.70

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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.