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Finding the Fourth Proportional to 65,592, 98,397.60 and 21,204

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Solution

The fourth proportional to 65,592, 98,397.60 and 21,204 is: 31,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,592 : 98,397.60 = 21,204 : x
  2. Step 2: Convert to fraction form
    65,592/98,397.60 = 21,204/x
  3. Step 3: Cross multiply
    65,592x = 98,397.60 × 21,204
  4. Step 4: Simplify right side
    65,592x = 2,086,422,710.40
  5. Step 5: Solve for x
    x = 2,086,422,710.40/65,592
  6. Step 6: Final answer
    x = 31,809.10

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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.