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Finding the Fourth Proportional to 64,664.64, 89,236.80 and 36,370.62

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Solution

The fourth proportional to 64,664.64, 89,236.80 and 36,370.62 is: 50,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,664.64 : 89,236.80 = 36,370.62 : x
  2. Step 2: Convert to fraction form
    64,664.64/89,236.80 = 36,370.62/x
  3. Step 3: Cross multiply
    64,664.64x = 89,236.80 × 36,370.62
  4. Step 4: Simplify right side
    64,664.64x = 3,245,597,742.82
  5. Step 5: Solve for x
    x = 3,245,597,742.82/64,664.64
  6. Step 6: Final answer
    x = 50,191.23

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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.