Home / 74,148.44-111,221.78-29,774.40

Finding the Fourth Proportional to 74,148.44, 111,221.78 and 29,774.40

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Solution

The fourth proportional to 74,148.44, 111,221.78 and 29,774.40 is: 44,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.44 : 111,221.78 = 29,774.40 : x
  2. Step 2: Convert to fraction form
    74,148.44/111,221.78 = 29,774.40/x
  3. Step 3: Cross multiply
    74,148.44x = 111,221.78 × 29,774.40
  4. Step 4: Simplify right side
    74,148.44x = 3,311,561,766.43
  5. Step 5: Solve for x
    x = 3,311,561,766.43/74,148.44
  6. Step 6: Final answer
    x = 44,661.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.