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Finding the Fourth Proportional to 65,602.62, 98,391.69 and 17,571.78

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Solution

The fourth proportional to 65,602.62, 98,391.69 and 17,571.78 is: 26,354.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,602.62 : 98,391.69 = 17,571.78 : x
  2. Step 2: Convert to fraction form
    65,602.62/98,391.69 = 17,571.78/x
  3. Step 3: Cross multiply
    65,602.62x = 98,391.69 × 17,571.78
  4. Step 4: Simplify right side
    65,602.62x = 1,728,917,130.51
  5. Step 5: Solve for x
    x = 1,728,917,130.51/65,602.62
  6. Step 6: Final answer
    x = 26,354.39

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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.