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Finding the Fourth Proportional to 172,884.28, 259,326.42 and 54,564.88

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Solution

The fourth proportional to 172,884.28, 259,326.42 and 54,564.88 is: 81,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,884.28 : 259,326.42 = 54,564.88 : x
  2. Step 2: Convert to fraction form
    172,884.28/259,326.42 = 54,564.88/x
  3. Step 3: Cross multiply
    172,884.28x = 259,326.42 × 54,564.88
  4. Step 4: Simplify right side
    172,884.28x = 14,150,114,988.13
  5. Step 5: Solve for x
    x = 14,150,114,988.13/172,884.28
  6. Step 6: Final answer
    x = 81,847.32

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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.