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Finding the Fourth Proportional to 64,773.92, 97,164.32 and 20,404.12

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Solution

The fourth proportional to 64,773.92, 97,164.32 and 20,404.12 is: 30,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,773.92 : 97,164.32 = 20,404.12 : x
  2. Step 2: Convert to fraction form
    64,773.92/97,164.32 = 20,404.12/x
  3. Step 3: Cross multiply
    64,773.92x = 97,164.32 × 20,404.12
  4. Step 4: Simplify right side
    64,773.92x = 1,982,552,445.00
  5. Step 5: Solve for x
    x = 1,982,552,445.00/64,773.92
  6. Step 6: Final answer
    x = 30,607.26

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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.