Home / 66,485.44-91,756.97-40,659.09

Finding the Fourth Proportional to 66,485.44, 91,756.97 and 40,659.09

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Solution

The fourth proportional to 66,485.44, 91,756.97 and 40,659.09 is: 56,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,485.44 : 91,756.97 = 40,659.09 : x
  2. Step 2: Convert to fraction form
    66,485.44/91,756.97 = 40,659.09/x
  3. Step 3: Cross multiply
    66,485.44x = 91,756.97 × 40,659.09
  4. Step 4: Simplify right side
    66,485.44x = 3,730,754,901.36
  5. Step 5: Solve for x
    x = 3,730,754,901.36/66,485.44
  6. Step 6: Final answer
    x = 56,113.86

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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.