Home / 85,975.22-128,940.96-33,356

Finding the Fourth Proportional to 85,975.22, 128,940.96 and 33,356

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Solution

The fourth proportional to 85,975.22, 128,940.96 and 33,356 is: 50,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975.22 : 128,940.96 = 33,356 : x
  2. Step 2: Convert to fraction form
    85,975.22/128,940.96 = 33,356/x
  3. Step 3: Cross multiply
    85,975.22x = 128,940.96 × 33,356
  4. Step 4: Simplify right side
    85,975.22x = 4,300,954,661.76
  5. Step 5: Solve for x
    x = 4,300,954,661.76/85,975.22
  6. Step 6: Final answer
    x = 50,025.52

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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.