Home / 66,531.96-91,771.92-50,581.44

Finding the Fourth Proportional to 66,531.96, 91,771.92 and 50,581.44

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Solution

The fourth proportional to 66,531.96, 91,771.92 and 50,581.44 is: 69,770.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.96 : 91,771.92 = 50,581.44 : x
  2. Step 2: Convert to fraction form
    66,531.96/91,771.92 = 50,581.44/x
  3. Step 3: Cross multiply
    66,531.96x = 91,771.92 × 50,581.44
  4. Step 4: Simplify right side
    66,531.96x = 4,641,955,865.16
  5. Step 5: Solve for x
    x = 4,641,955,865.16/66,531.96
  6. Step 6: Final answer
    x = 69,770.32

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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.