Home / 68,811.75-94,960.40-40,151.12

Finding the Fourth Proportional to 68,811.75, 94,960.40 and 40,151.12

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Solution

The fourth proportional to 68,811.75, 94,960.40 and 40,151.12 is: 55,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,811.75 : 94,960.40 = 40,151.12 : x
  2. Step 2: Convert to fraction form
    68,811.75/94,960.40 = 40,151.12/x
  3. Step 3: Cross multiply
    68,811.75x = 94,960.40 × 40,151.12
  4. Step 4: Simplify right side
    68,811.75x = 3,812,765,740.09
  5. Step 5: Solve for x
    x = 3,812,765,740.09/68,811.75
  6. Step 6: Final answer
    x = 55,408.64

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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.