Home / 68,086.11-93,920.49-40,855.15

Finding the Fourth Proportional to 68,086.11, 93,920.49 and 40,855.15

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Solution

The fourth proportional to 68,086.11, 93,920.49 and 40,855.15 is: 56,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,086.11 : 93,920.49 = 40,855.15 : x
  2. Step 2: Convert to fraction form
    68,086.11/93,920.49 = 40,855.15/x
  3. Step 3: Cross multiply
    68,086.11x = 93,920.49 × 40,855.15
  4. Step 4: Simplify right side
    68,086.11x = 3,837,135,707.02
  5. Step 5: Solve for x
    x = 3,837,135,707.02/68,086.11
  6. Step 6: Final answer
    x = 56,357.10

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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.