Home / 65,126.96-97,697.60-20,743.36

Finding the Fourth Proportional to 65,126.96, 97,697.60 and 20,743.36

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Solution

The fourth proportional to 65,126.96, 97,697.60 and 20,743.36 is: 31,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,126.96 : 97,697.60 = 20,743.36 : x
  2. Step 2: Convert to fraction form
    65,126.96/97,697.60 = 20,743.36/x
  3. Step 3: Cross multiply
    65,126.96x = 97,697.60 × 20,743.36
  4. Step 4: Simplify right side
    65,126.96x = 2,026,576,487.94
  5. Step 5: Solve for x
    x = 2,026,576,487.94/65,126.96
  6. Step 6: Final answer
    x = 31,117.32

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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.