Home / 66,383.28-91,628.25-43,416.37

Finding the Fourth Proportional to 66,383.28, 91,628.25 and 43,416.37

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Solution

The fourth proportional to 66,383.28, 91,628.25 and 43,416.37 is: 59,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,383.28 : 91,628.25 = 43,416.37 : x
  2. Step 2: Convert to fraction form
    66,383.28/91,628.25 = 43,416.37/x
  3. Step 3: Cross multiply
    66,383.28x = 91,628.25 × 43,416.37
  4. Step 4: Simplify right side
    66,383.28x = 3,978,166,004.45
  5. Step 5: Solve for x
    x = 3,978,166,004.45/66,383.28
  6. Step 6: Final answer
    x = 59,927.23

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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.