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Finding the Fourth Proportional to 64,989.44, 89,685.32 and 35,181.44

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Solution

The fourth proportional to 64,989.44, 89,685.32 and 35,181.44 is: 48,550.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,989.44 : 89,685.32 = 35,181.44 : x
  2. Step 2: Convert to fraction form
    64,989.44/89,685.32 = 35,181.44/x
  3. Step 3: Cross multiply
    64,989.44x = 89,685.32 × 35,181.44
  4. Step 4: Simplify right side
    64,989.44x = 3,155,258,704.46
  5. Step 5: Solve for x
    x = 3,155,258,704.46/64,989.44
  6. Step 6: Final answer
    x = 48,550.33

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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.