Home / 74,469.69-111,784.12-30,125.43

Finding the Fourth Proportional to 74,469.69, 111,784.12 and 30,125.43

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Solution

The fourth proportional to 74,469.69, 111,784.12 and 30,125.43 is: 45,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.69 : 111,784.12 = 30,125.43 : x
  2. Step 2: Convert to fraction form
    74,469.69/111,784.12 = 30,125.43/x
  3. Step 3: Cross multiply
    74,469.69x = 111,784.12 × 30,125.43
  4. Step 4: Simplify right side
    74,469.69x = 3,367,544,606.86
  5. Step 5: Solve for x
    x = 3,367,544,606.86/74,469.69
  6. Step 6: Final answer
    x = 45,220.34

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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.