Home / 68,408.24-94,403.76-40,114.40

Finding the Fourth Proportional to 68,408.24, 94,403.76 and 40,114.40

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Solution

The fourth proportional to 68,408.24, 94,403.76 and 40,114.40 is: 55,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,408.24 : 94,403.76 = 40,114.40 : x
  2. Step 2: Convert to fraction form
    68,408.24/94,403.76 = 40,114.40/x
  3. Step 3: Cross multiply
    68,408.24x = 94,403.76 × 40,114.40
  4. Step 4: Simplify right side
    68,408.24x = 3,786,950,190.14
  5. Step 5: Solve for x
    x = 3,786,950,190.14/68,408.24
  6. Step 6: Final answer
    x = 55,358.10

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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.