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Finding the Fourth Proportional to 66,464.38, 91,718.31 and 36,656.38

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Solution

The fourth proportional to 66,464.38, 91,718.31 and 36,656.38 is: 50,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464.38 : 91,718.31 = 36,656.38 : x
  2. Step 2: Convert to fraction form
    66,464.38/91,718.31 = 36,656.38/x
  3. Step 3: Cross multiply
    66,464.38x = 91,718.31 × 36,656.38
  4. Step 4: Simplify right side
    66,464.38x = 3,362,061,224.32
  5. Step 5: Solve for x
    x = 3,362,061,224.32/66,464.38
  6. Step 6: Final answer
    x = 50,584.41

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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.