Home / 65,385.12-90,274.79-50,249.87

Finding the Fourth Proportional to 65,385.12, 90,274.79 and 50,249.87

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Solution

The fourth proportional to 65,385.12, 90,274.79 and 50,249.87 is: 69,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,385.12 : 90,274.79 = 50,249.87 : x
  2. Step 2: Convert to fraction form
    65,385.12/90,274.79 = 50,249.87/x
  3. Step 3: Cross multiply
    65,385.12x = 90,274.79 × 50,249.87
  4. Step 4: Simplify right side
    65,385.12x = 4,536,295,759.15
  5. Step 5: Solve for x
    x = 4,536,295,759.15/65,385.12
  6. Step 6: Final answer
    x = 69,378.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.