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Finding the Fourth Proportional to 65,395.86, 90,074.41 and 50,259.56

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Solution

The fourth proportional to 65,395.86, 90,074.41 and 50,259.56 is: 69,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,395.86 : 90,074.41 = 50,259.56 : x
  2. Step 2: Convert to fraction form
    65,395.86/90,074.41 = 50,259.56/x
  3. Step 3: Cross multiply
    65,395.86x = 90,074.41 × 50,259.56
  4. Step 4: Simplify right side
    65,395.86x = 4,527,099,975.62
  5. Step 5: Solve for x
    x = 4,527,099,975.62/65,395.86
  6. Step 6: Final answer
    x = 69,226.09

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1.5x scale

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.