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Finding the Fourth Proportional to 64,795.44, 97,190.40 and 20,454

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Solution

The fourth proportional to 64,795.44, 97,190.40 and 20,454 is: 30,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,795.44 : 97,190.40 = 20,454 : x
  2. Step 2: Convert to fraction form
    64,795.44/97,190.40 = 20,454/x
  3. Step 3: Cross multiply
    64,795.44x = 97,190.40 × 20,454
  4. Step 4: Simplify right side
    64,795.44x = 1,987,932,441.60
  5. Step 5: Solve for x
    x = 1,987,932,441.60/64,795.44
  6. Step 6: Final answer
    x = 30,680.13

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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.