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Finding the Fourth Proportional to 65,496.88, 98,162.60 and 28,012.40

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Solution

The fourth proportional to 65,496.88, 98,162.60 and 28,012.40 is: 41,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,496.88 : 98,162.60 = 28,012.40 : x
  2. Step 2: Convert to fraction form
    65,496.88/98,162.60 = 28,012.40/x
  3. Step 3: Cross multiply
    65,496.88x = 98,162.60 × 28,012.40
  4. Step 4: Simplify right side
    65,496.88x = 2,749,770,016.24
  5. Step 5: Solve for x
    x = 2,749,770,016.24/65,496.88
  6. Step 6: Final answer
    x = 41,983.22

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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.