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Finding the Fourth Proportional to 172,848.64, 259,282.32 and 54,528.88

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Solution

The fourth proportional to 172,848.64, 259,282.32 and 54,528.88 is: 81,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,848.64 : 259,282.32 = 54,528.88 : x
  2. Step 2: Convert to fraction form
    172,848.64/259,282.32 = 54,528.88/x
  3. Step 3: Cross multiply
    172,848.64x = 259,282.32 × 54,528.88
  4. Step 4: Simplify right side
    172,848.64x = 14,138,374,513.40
  5. Step 5: Solve for x
    x = 14,138,374,513.40/172,848.64
  6. Step 6: Final answer
    x = 81,796.27

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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.