Home / 74,145.94-111,724.88-61,286.38

Finding the Fourth Proportional to 74,145.94, 111,724.88 and 61,286.38

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Solution

The fourth proportional to 74,145.94, 111,724.88 and 61,286.38 is: 92,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,145.94 : 111,724.88 = 61,286.38 : x
  2. Step 2: Convert to fraction form
    74,145.94/111,724.88 = 61,286.38/x
  3. Step 3: Cross multiply
    74,145.94x = 111,724.88 × 61,286.38
  4. Step 4: Simplify right side
    74,145.94x = 6,847,213,451.13
  5. Step 5: Solve for x
    x = 6,847,213,451.13/74,145.94
  6. Step 6: Final answer
    x = 92,347.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.