Home / 85,435.94-117,881.64-49,604.37

Finding the Fourth Proportional to 85,435.94, 117,881.64 and 49,604.37

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Solution

The fourth proportional to 85,435.94, 117,881.64 and 49,604.37 is: 68,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,435.94 : 117,881.64 = 49,604.37 : x
  2. Step 2: Convert to fraction form
    85,435.94/117,881.64 = 49,604.37/x
  3. Step 3: Cross multiply
    85,435.94x = 117,881.64 × 49,604.37
  4. Step 4: Simplify right side
    85,435.94x = 5,847,444,486.77
  5. Step 5: Solve for x
    x = 5,847,444,486.77/85,435.94
  6. Step 6: Final answer
    x = 68,442.45

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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.