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Finding the Fourth Proportional to 64,777, 97,165.50 and 18,031.09

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Solution

The fourth proportional to 64,777, 97,165.50 and 18,031.09 is: 27,046.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,777 : 97,165.50 = 18,031.09 : x
  2. Step 2: Convert to fraction form
    64,777/97,165.50 = 18,031.09/x
  3. Step 3: Cross multiply
    64,777x = 97,165.50 × 18,031.09
  4. Step 4: Simplify right side
    64,777x = 1,751,999,875.40
  5. Step 5: Solve for x
    x = 1,751,999,875.40/64,777
  6. Step 6: Final answer
    x = 27,046.64

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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.