Home / 66,135.79-91,268.06-35,921.70

Finding the Fourth Proportional to 66,135.79, 91,268.06 and 35,921.70

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Solution

The fourth proportional to 66,135.79, 91,268.06 and 35,921.70 is: 49,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,135.79 : 91,268.06 = 35,921.70 : x
  2. Step 2: Convert to fraction form
    66,135.79/91,268.06 = 35,921.70/x
  3. Step 3: Cross multiply
    66,135.79x = 91,268.06 × 35,921.70
  4. Step 4: Simplify right side
    66,135.79x = 3,278,504,033.55
  5. Step 5: Solve for x
    x = 3,278,504,033.55/66,135.79
  6. Step 6: Final answer
    x = 49,572.31

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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.