Home / 65,609.83-98,430.36-21,236.59

Finding the Fourth Proportional to 65,609.83, 98,430.36 and 21,236.59

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Solution

The fourth proportional to 65,609.83, 98,430.36 and 21,236.59 is: 31,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,609.83 : 98,430.36 = 21,236.59 : x
  2. Step 2: Convert to fraction form
    65,609.83/98,430.36 = 21,236.59/x
  3. Step 3: Cross multiply
    65,609.83x = 98,430.36 × 21,236.59
  4. Step 4: Simplify right side
    65,609.83x = 2,090,325,198.87
  5. Step 5: Solve for x
    x = 2,090,325,198.87/65,609.83
  6. Step 6: Final answer
    x = 31,859.94

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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.