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Finding the Fourth Proportional to 65,131.01, 97,703.64 and 20,747.33

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Solution

The fourth proportional to 65,131.01, 97,703.64 and 20,747.33 is: 31,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,131.01 : 97,703.64 = 20,747.33 : x
  2. Step 2: Convert to fraction form
    65,131.01/97,703.64 = 20,747.33/x
  3. Step 3: Cross multiply
    65,131.01x = 97,703.64 × 20,747.33
  4. Step 4: Simplify right side
    65,131.01x = 2,027,089,661.28
  5. Step 5: Solve for x
    x = 2,027,089,661.28/65,131.01
  6. Step 6: Final answer
    x = 31,123.26

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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.