Home / 45,112.96-67,662.72-11,833.60

Finding the Fourth Proportional to 45,112.96, 67,662.72 and 11,833.60

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Solution

The fourth proportional to 45,112.96, 67,662.72 and 11,833.60 is: 17,748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,112.96 : 67,662.72 = 11,833.60 : x
  2. Step 2: Convert to fraction form
    45,112.96/67,662.72 = 11,833.60/x
  3. Step 3: Cross multiply
    45,112.96x = 67,662.72 × 11,833.60
  4. Step 4: Simplify right side
    45,112.96x = 800,693,563.39
  5. Step 5: Solve for x
    x = 800,693,563.39/45,112.96
  6. Step 6: Final answer
    x = 17,748.64

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1.5x scale

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.