Home / 66,072.28-91,179.80-35,857.60

Finding the Fourth Proportional to 66,072.28, 91,179.80 and 35,857.60

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Solution

The fourth proportional to 66,072.28, 91,179.80 and 35,857.60 is: 49,483.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072.28 : 91,179.80 = 35,857.60 : x
  2. Step 2: Convert to fraction form
    66,072.28/91,179.80 = 35,857.60/x
  3. Step 3: Cross multiply
    66,072.28x = 91,179.80 × 35,857.60
  4. Step 4: Simplify right side
    66,072.28x = 3,269,488,796.48
  5. Step 5: Solve for x
    x = 3,269,488,796.48/66,072.28
  6. Step 6: Final answer
    x = 49,483.52

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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.