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Finding the Fourth Proportional to 85,653.88, 118,194.04 and 49,848.64

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Solution

The fourth proportional to 85,653.88, 118,194.04 and 49,848.64 is: 68,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,653.88 : 118,194.04 = 49,848.64 : x
  2. Step 2: Convert to fraction form
    85,653.88/118,194.04 = 49,848.64/x
  3. Step 3: Cross multiply
    85,653.88x = 118,194.04 × 49,848.64
  4. Step 4: Simplify right side
    85,653.88x = 5,891,812,150.11
  5. Step 5: Solve for x
    x = 5,891,812,150.11/85,653.88
  6. Step 6: Final answer
    x = 68,786.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.