Home / 65,215.13-97,786.74-20,224.03

Finding the Fourth Proportional to 65,215.13, 97,786.74 and 20,224.03

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Solution

The fourth proportional to 65,215.13, 97,786.74 and 20,224.03 is: 30,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.13 : 97,786.74 = 20,224.03 : x
  2. Step 2: Convert to fraction form
    65,215.13/97,786.74 = 20,224.03/x
  3. Step 3: Cross multiply
    65,215.13x = 97,786.74 × 20,224.03
  4. Step 4: Simplify right side
    65,215.13x = 1,977,641,978.09
  5. Step 5: Solve for x
    x = 1,977,641,978.09/65,215.13
  6. Step 6: Final answer
    x = 30,324.90

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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.