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Finding the Fourth Proportional to 66,180.57, 91,328.88 and 35,965.32

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Solution

The fourth proportional to 66,180.57, 91,328.88 and 35,965.32 is: 49,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,180.57 : 91,328.88 = 35,965.32 : x
  2. Step 2: Convert to fraction form
    66,180.57/91,328.88 = 35,965.32/x
  3. Step 3: Cross multiply
    66,180.57x = 91,328.88 × 35,965.32
  4. Step 4: Simplify right side
    66,180.57x = 3,284,672,394.44
  5. Step 5: Solve for x
    x = 3,284,672,394.44/66,180.57
  6. Step 6: Final answer
    x = 49,631.97

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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.