Home / 85,464.70-117,902.98-49,635.30

Finding the Fourth Proportional to 85,464.70, 117,902.98 and 49,635.30

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Solution

The fourth proportional to 85,464.70, 117,902.98 and 49,635.30 is: 68,474.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464.70 : 117,902.98 = 49,635.30 : x
  2. Step 2: Convert to fraction form
    85,464.70/117,902.98 = 49,635.30/x
  3. Step 3: Cross multiply
    85,464.70x = 117,902.98 × 49,635.30
  4. Step 4: Simplify right side
    85,464.70x = 5,852,149,783.19
  5. Step 5: Solve for x
    x = 5,852,149,783.19/85,464.70
  6. Step 6: Final answer
    x = 68,474.47

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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.