Home / 66,485.27-91,740.60-38,190.96

Finding the Fourth Proportional to 66,485.27, 91,740.60 and 38,190.96

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Solution

The fourth proportional to 66,485.27, 91,740.60 and 38,190.96 is: 52,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.27 : 91,740.60 = 38,190.96 : x
  2. Step 2: Convert to fraction form
    66,485.27/91,740.60 = 38,190.96/x
  3. Step 3: Cross multiply
    66,485.27x = 91,740.60 × 38,190.96
  4. Step 4: Simplify right side
    66,485.27x = 3,503,661,584.98
  5. Step 5: Solve for x
    x = 3,503,661,584.98/66,485.27
  6. Step 6: Final answer
    x = 52,698.31

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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.