Home / 65,608.09-98,415.18-21,238.33

Finding the Fourth Proportional to 65,608.09, 98,415.18 and 21,238.33

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Solution

The fourth proportional to 65,608.09, 98,415.18 and 21,238.33 is: 31,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.09 : 98,415.18 = 21,238.33 : x
  2. Step 2: Convert to fraction form
    65,608.09/98,415.18 = 21,238.33/x
  3. Step 3: Cross multiply
    65,608.09x = 98,415.18 × 21,238.33
  4. Step 4: Simplify right side
    65,608.09x = 2,090,174,069.85
  5. Step 5: Solve for x
    x = 2,090,174,069.85/65,608.09
  6. Step 6: Final answer
    x = 31,858.48

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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.