Home / 93,081.53-128,453.07-50,640.37

Finding the Fourth Proportional to 93,081.53, 128,453.07 and 50,640.37

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Solution

The fourth proportional to 93,081.53, 128,453.07 and 50,640.37 is: 69,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,081.53 : 128,453.07 = 50,640.37 : x
  2. Step 2: Convert to fraction form
    93,081.53/128,453.07 = 50,640.37/x
  3. Step 3: Cross multiply
    93,081.53x = 128,453.07 × 50,640.37
  4. Step 4: Simplify right side
    93,081.53x = 6,504,910,861.20
  5. Step 5: Solve for x
    x = 6,504,910,861.20/93,081.53
  6. Step 6: Final answer
    x = 69,884.01

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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.