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Finding the Fourth Proportional to 66,662.54, 91,995.63 and 36,449.74

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Solution

The fourth proportional to 66,662.54, 91,995.63 and 36,449.74 is: 50,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,662.54 : 91,995.63 = 36,449.74 : x
  2. Step 2: Convert to fraction form
    66,662.54/91,995.63 = 36,449.74/x
  3. Step 3: Cross multiply
    66,662.54x = 91,995.63 × 36,449.74
  4. Step 4: Simplify right side
    66,662.54x = 3,353,216,794.64
  5. Step 5: Solve for x
    x = 3,353,216,794.64/66,662.54
  6. Step 6: Final answer
    x = 50,301.37

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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.