Home / 65,175.67-89,944.32-36,880.75

Finding the Fourth Proportional to 65,175.67, 89,944.32 and 36,880.75

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Solution

The fourth proportional to 65,175.67, 89,944.32 and 36,880.75 is: 50,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,175.67 : 89,944.32 = 36,880.75 : x
  2. Step 2: Convert to fraction form
    65,175.67/89,944.32 = 36,880.75/x
  3. Step 3: Cross multiply
    65,175.67x = 89,944.32 × 36,880.75
  4. Step 4: Simplify right side
    65,175.67x = 3,317,213,979.84
  5. Step 5: Solve for x
    x = 3,317,213,979.84/65,175.67
  6. Step 6: Final answer
    x = 50,896.51

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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.