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Finding the Fourth Proportional to 64,753.91, 97,144.00 and 20,370.34

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Solution

The fourth proportional to 64,753.91, 97,144.00 and 20,370.34 is: 30,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.91 : 97,144.00 = 20,370.34 : x
  2. Step 2: Convert to fraction form
    64,753.91/97,144.00 = 20,370.34/x
  3. Step 3: Cross multiply
    64,753.91x = 97,144.00 × 20,370.34
  4. Step 4: Simplify right side
    64,753.91x = 1,978,855,943.20
  5. Step 5: Solve for x
    x = 1,978,855,943.20/64,753.91
  6. Step 6: Final answer
    x = 30,559.64

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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.