Home / 84,621.78-116,782.97-48,813.30

Finding the Fourth Proportional to 84,621.78, 116,782.97 and 48,813.30

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Solution

The fourth proportional to 84,621.78, 116,782.97 and 48,813.30 is: 67,365.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.78 : 116,782.97 = 48,813.30 : x
  2. Step 2: Convert to fraction form
    84,621.78/116,782.97 = 48,813.30/x
  3. Step 3: Cross multiply
    84,621.78x = 116,782.97 × 48,813.30
  4. Step 4: Simplify right side
    84,621.78x = 5,700,561,905.43
  5. Step 5: Solve for x
    x = 5,700,561,905.43/84,621.78
  6. Step 6: Final answer
    x = 67,365.19

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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.