Home / 65,431.08-90,297.11-36,755.80

Finding the Fourth Proportional to 65,431.08, 90,297.11 and 36,755.80

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Solution

The fourth proportional to 65,431.08, 90,297.11 and 36,755.80 is: 50,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,431.08 : 90,297.11 = 36,755.80 : x
  2. Step 2: Convert to fraction form
    65,431.08/90,297.11 = 36,755.80/x
  3. Step 3: Cross multiply
    65,431.08x = 90,297.11 × 36,755.80
  4. Step 4: Simplify right side
    65,431.08x = 3,318,942,381.88
  5. Step 5: Solve for x
    x = 3,318,942,381.88/65,431.08
  6. Step 6: Final answer
    x = 50,724.25

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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.