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Finding the Fourth Proportional to 64,940.21, 97,409.25 and 20,566.89

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Solution

The fourth proportional to 64,940.21, 97,409.25 and 20,566.89 is: 30,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,940.21 : 97,409.25 = 20,566.89 : x
  2. Step 2: Convert to fraction form
    64,940.21/97,409.25 = 20,566.89/x
  3. Step 3: Cross multiply
    64,940.21x = 97,409.25 × 20,566.89
  4. Step 4: Simplify right side
    64,940.21x = 2,003,405,329.73
  5. Step 5: Solve for x
    x = 2,003,405,329.73/64,940.21
  6. Step 6: Final answer
    x = 30,850.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.