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Finding the Fourth Proportional to 65,164.74, 97,745.40 and 20,794.20

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Solution

The fourth proportional to 65,164.74, 97,745.40 and 20,794.20 is: 31,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,164.74 : 97,745.40 = 20,794.20 : x
  2. Step 2: Convert to fraction form
    65,164.74/97,745.40 = 20,794.20/x
  3. Step 3: Cross multiply
    65,164.74x = 97,745.40 × 20,794.20
  4. Step 4: Simplify right side
    65,164.74x = 2,032,537,396.68
  5. Step 5: Solve for x
    x = 2,032,537,396.68/65,164.74
  6. Step 6: Final answer
    x = 31,190.75

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1.5x scale

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.