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Finding the Fourth Proportional to 64,993.23, 97,504.43 and 20,621.43

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Solution

The fourth proportional to 64,993.23, 97,504.43 and 20,621.43 is: 30,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,993.23 : 97,504.43 = 20,621.43 : x
  2. Step 2: Convert to fraction form
    64,993.23/97,504.43 = 20,621.43/x
  3. Step 3: Cross multiply
    64,993.23x = 97,504.43 × 20,621.43
  4. Step 4: Simplify right side
    64,993.23x = 2,010,680,674.83
  5. Step 5: Solve for x
    x = 2,010,680,674.83/64,993.23
  6. Step 6: Final answer
    x = 30,936.77

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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.