Home / 65,128.36-97,540.62-47,554.60

Finding the Fourth Proportional to 65,128.36, 97,540.62 and 47,554.60

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Solution

The fourth proportional to 65,128.36, 97,540.62 and 47,554.60 is: 71,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,128.36 : 97,540.62 = 47,554.60 : x
  2. Step 2: Convert to fraction form
    65,128.36/97,540.62 = 47,554.60/x
  3. Step 3: Cross multiply
    65,128.36x = 97,540.62 × 47,554.60
  4. Step 4: Simplify right side
    65,128.36x = 4,638,505,167.85
  5. Step 5: Solve for x
    x = 4,638,505,167.85/65,128.36
  6. Step 6: Final answer
    x = 71,220.97

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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.