Home / 66,119.37-99,185.36-18,735.45

Finding the Fourth Proportional to 66,119.37, 99,185.36 and 18,735.45

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Solution

The fourth proportional to 66,119.37, 99,185.36 and 18,735.45 is: 28,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,119.37 : 99,185.36 = 18,735.45 : x
  2. Step 2: Convert to fraction form
    66,119.37/99,185.36 = 18,735.45/x
  3. Step 3: Cross multiply
    66,119.37x = 99,185.36 × 18,735.45
  4. Step 4: Simplify right side
    66,119.37x = 1,858,282,259.33
  5. Step 5: Solve for x
    x = 1,858,282,259.33/66,119.37
  6. Step 6: Final answer
    x = 28,104.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.