Home / 84,847.53-117,089.87-47,121.78

Finding the Fourth Proportional to 84,847.53, 117,089.87 and 47,121.78

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Solution

The fourth proportional to 84,847.53, 117,089.87 and 47,121.78 is: 65,028.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,847.53 : 117,089.87 = 47,121.78 : x
  2. Step 2: Convert to fraction form
    84,847.53/117,089.87 = 47,121.78/x
  3. Step 3: Cross multiply
    84,847.53x = 117,089.87 × 47,121.78
  4. Step 4: Simplify right side
    84,847.53x = 5,517,482,858.76
  5. Step 5: Solve for x
    x = 5,517,482,858.76/84,847.53
  6. Step 6: Final answer
    x = 65,028.21

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1.5x scale

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.