Home / 76,850.23-115,285.43-30,097.03

Finding the Fourth Proportional to 76,850.23, 115,285.43 and 30,097.03

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Solution

The fourth proportional to 76,850.23, 115,285.43 and 30,097.03 is: 45,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,850.23 : 115,285.43 = 30,097.03 : x
  2. Step 2: Convert to fraction form
    76,850.23/115,285.43 = 30,097.03/x
  3. Step 3: Cross multiply
    76,850.23x = 115,285.43 × 30,097.03
  4. Step 4: Simplify right side
    76,850.23x = 3,469,748,894.79
  5. Step 5: Solve for x
    x = 3,469,748,894.79/76,850.23
  6. Step 6: Final answer
    x = 45,149.49

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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.