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Finding the Fourth Proportional to 50,279.80, 75,419.70 and 30,564.40

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Solution

The fourth proportional to 50,279.80, 75,419.70 and 30,564.40 is: 45,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,279.80 : 75,419.70 = 30,564.40 : x
  2. Step 2: Convert to fraction form
    50,279.80/75,419.70 = 30,564.40/x
  3. Step 3: Cross multiply
    50,279.80x = 75,419.70 × 30,564.40
  4. Step 4: Simplify right side
    50,279.80x = 2,305,157,878.68
  5. Step 5: Solve for x
    x = 2,305,157,878.68/50,279.80
  6. Step 6: Final answer
    x = 45,846.60

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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.