Home / 85,435.44-117,880.95-49,603.87

Finding the Fourth Proportional to 85,435.44, 117,880.95 and 49,603.87

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Solution

The fourth proportional to 85,435.44, 117,880.95 and 49,603.87 is: 68,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,435.44 : 117,880.95 = 49,603.87 : x
  2. Step 2: Convert to fraction form
    85,435.44/117,880.95 = 49,603.87/x
  3. Step 3: Cross multiply
    85,435.44x = 117,880.95 × 49,603.87
  4. Step 4: Simplify right side
    85,435.44x = 5,847,351,319.28
  5. Step 5: Solve for x
    x = 5,847,351,319.28/85,435.44
  6. Step 6: Final answer
    x = 68,441.75

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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.