Home / 85,954.08-128,949.48-26,788.44

Finding the Fourth Proportional to 85,954.08, 128,949.48 and 26,788.44

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Solution

The fourth proportional to 85,954.08, 128,949.48 and 26,788.44 is: 40,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954.08 : 128,949.48 = 26,788.44 : x
  2. Step 2: Convert to fraction form
    85,954.08/128,949.48 = 26,788.44/x
  3. Step 3: Cross multiply
    85,954.08x = 128,949.48 × 26,788.44
  4. Step 4: Simplify right side
    85,954.08x = 3,454,355,408.01
  5. Step 5: Solve for x
    x = 3,454,355,408.01/85,954.08
  6. Step 6: Final answer
    x = 40,188.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.