Home / 85,492.44-117,979.32-47,766.72

Finding the Fourth Proportional to 85,492.44, 117,979.32 and 47,766.72

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Solution

The fourth proportional to 85,492.44, 117,979.32 and 47,766.72 is: 65,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,492.44 : 117,979.32 = 47,766.72 : x
  2. Step 2: Convert to fraction form
    85,492.44/117,979.32 = 47,766.72/x
  3. Step 3: Cross multiply
    85,492.44x = 117,979.32 × 47,766.72
  4. Step 4: Simplify right side
    85,492.44x = 5,635,485,144.23
  5. Step 5: Solve for x
    x = 5,635,485,144.23/85,492.44
  6. Step 6: Final answer
    x = 65,917.94

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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.