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Finding the Fourth Proportional to 65,344.98, 90,226.86 and 50,213.80

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Solution

The fourth proportional to 65,344.98, 90,226.86 and 50,213.80 is: 69,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,344.98 : 90,226.86 = 50,213.80 : x
  2. Step 2: Convert to fraction form
    65,344.98/90,226.86 = 50,213.80/x
  3. Step 3: Cross multiply
    65,344.98x = 90,226.86 × 50,213.80
  4. Step 4: Simplify right side
    65,344.98x = 4,530,633,502.67
  5. Step 5: Solve for x
    x = 4,530,633,502.67/65,344.98
  6. Step 6: Final answer
    x = 69,334.07

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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.