Home / 84,858.48-117,107.64-47,136.24

Finding the Fourth Proportional to 84,858.48, 117,107.64 and 47,136.24

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Solution

The fourth proportional to 84,858.48, 117,107.64 and 47,136.24 is: 65,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,858.48 : 117,107.64 = 47,136.24 : x
  2. Step 2: Convert to fraction form
    84,858.48/117,107.64 = 47,136.24/x
  3. Step 3: Cross multiply
    84,858.48x = 117,107.64 × 47,136.24
  4. Step 4: Simplify right side
    84,858.48x = 5,520,013,824.87
  5. Step 5: Solve for x
    x = 5,520,013,824.87/84,858.48
  6. Step 6: Final answer
    x = 65,049.64

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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.