Home / 65,380.23-98,073.86-21,003.57

Finding the Fourth Proportional to 65,380.23, 98,073.86 and 21,003.57

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Solution

The fourth proportional to 65,380.23, 98,073.86 and 21,003.57 is: 31,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,380.23 : 98,073.86 = 21,003.57 : x
  2. Step 2: Convert to fraction form
    65,380.23/98,073.86 = 21,003.57/x
  3. Step 3: Cross multiply
    65,380.23x = 98,073.86 × 21,003.57
  4. Step 4: Simplify right side
    65,380.23x = 2,059,901,078.66
  5. Step 5: Solve for x
    x = 2,059,901,078.66/65,380.23
  6. Step 6: Final answer
    x = 31,506.48

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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.