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Finding the Fourth Proportional to 66,547.89, 91,836.42 and 36,333.84

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Solution

The fourth proportional to 66,547.89, 91,836.42 and 36,333.84 is: 50,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,547.89 : 91,836.42 = 36,333.84 : x
  2. Step 2: Convert to fraction form
    66,547.89/91,836.42 = 36,333.84/x
  3. Step 3: Cross multiply
    66,547.89x = 91,836.42 × 36,333.84
  4. Step 4: Simplify right side
    66,547.89x = 3,336,769,790.45
  5. Step 5: Solve for x
    x = 3,336,769,790.45/66,547.89
  6. Step 6: Final answer
    x = 50,140.88

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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.