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Finding the Fourth Proportional to 66,112.68, 91,236.12 and 35,898.32

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Solution

The fourth proportional to 66,112.68, 91,236.12 and 35,898.32 is: 49,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.68 : 91,236.12 = 35,898.32 : x
  2. Step 2: Convert to fraction form
    66,112.68/91,236.12 = 35,898.32/x
  3. Step 3: Cross multiply
    66,112.68x = 91,236.12 × 35,898.32
  4. Step 4: Simplify right side
    66,112.68x = 3,275,223,431.32
  5. Step 5: Solve for x
    x = 3,275,223,431.32/66,112.68
  6. Step 6: Final answer
    x = 49,540.02

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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.