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Finding the Fourth Proportional to 66,065.46, 91,246.08 and 43,505.34

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Solution

The fourth proportional to 66,065.46, 91,246.08 and 43,505.34 is: 60,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,065.46 : 91,246.08 = 43,505.34 : x
  2. Step 2: Convert to fraction form
    66,065.46/91,246.08 = 43,505.34/x
  3. Step 3: Cross multiply
    66,065.46x = 91,246.08 × 43,505.34
  4. Step 4: Simplify right side
    66,065.46x = 3,969,691,734.07
  5. Step 5: Solve for x
    x = 3,969,691,734.07/66,065.46
  6. Step 6: Final answer
    x = 60,087.25

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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.