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Finding the Fourth Proportional to 66,194.75, 91,346.07 and 35,979.38

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Solution

The fourth proportional to 66,194.75, 91,346.07 and 35,979.38 is: 49,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,194.75 : 91,346.07 = 35,979.38 : x
  2. Step 2: Convert to fraction form
    66,194.75/91,346.07 = 35,979.38/x
  3. Step 3: Cross multiply
    66,194.75x = 91,346.07 × 35,979.38
  4. Step 4: Simplify right side
    66,194.75x = 3,286,574,507.31
  5. Step 5: Solve for x
    x = 3,286,574,507.31/66,194.75
  6. Step 6: Final answer
    x = 49,650.08

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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.