Home / 81,766.44-112,848.12-49,928.64

Finding the Fourth Proportional to 81,766.44, 112,848.12 and 49,928.64

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Solution

The fourth proportional to 81,766.44, 112,848.12 and 49,928.64 is: 68,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,766.44 : 112,848.12 = 49,928.64 : x
  2. Step 2: Convert to fraction form
    81,766.44/112,848.12 = 49,928.64/x
  3. Step 3: Cross multiply
    81,766.44x = 112,848.12 × 49,928.64
  4. Step 4: Simplify right side
    81,766.44x = 5,634,353,158.16
  5. Step 5: Solve for x
    x = 5,634,353,158.16/81,766.44
  6. Step 6: Final answer
    x = 68,907.89

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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.