Home / 68,318.40-94,286.64-40,047.84

Finding the Fourth Proportional to 68,318.40, 94,286.64 and 40,047.84

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Solution

The fourth proportional to 68,318.40, 94,286.64 and 40,047.84 is: 55,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,318.40 : 94,286.64 = 40,047.84 : x
  2. Step 2: Convert to fraction form
    68,318.40/94,286.64 = 40,047.84/x
  3. Step 3: Cross multiply
    68,318.40x = 94,286.64 × 40,047.84
  4. Step 4: Simplify right side
    68,318.40x = 3,775,976,272.86
  5. Step 5: Solve for x
    x = 3,775,976,272.86/68,318.40
  6. Step 6: Final answer
    x = 55,270.27

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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.