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Finding the Fourth Proportional to 65,876.43, 98,803.44 and 18,480.63

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Solution

The fourth proportional to 65,876.43, 98,803.44 and 18,480.63 is: 27,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,876.43 : 98,803.44 = 18,480.63 : x
  2. Step 2: Convert to fraction form
    65,876.43/98,803.44 = 18,480.63/x
  3. Step 3: Cross multiply
    65,876.43x = 98,803.44 × 18,480.63
  4. Step 4: Simplify right side
    65,876.43x = 1,825,949,817.37
  5. Step 5: Solve for x
    x = 1,825,949,817.37/65,876.43
  6. Step 6: Final answer
    x = 27,717.80

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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.