Home / 81,555.57-122,331.81-33,513.96

Finding the Fourth Proportional to 81,555.57, 122,331.81 and 33,513.96

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Solution

The fourth proportional to 81,555.57, 122,331.81 and 33,513.96 is: 50,270.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,555.57 : 122,331.81 = 33,513.96 : x
  2. Step 2: Convert to fraction form
    81,555.57/122,331.81 = 33,513.96/x
  3. Step 3: Cross multiply
    81,555.57x = 122,331.81 × 33,513.96
  4. Step 4: Simplify right side
    81,555.57x = 4,099,823,387.07
  5. Step 5: Solve for x
    x = 4,099,823,387.07/81,555.57
  6. Step 6: Final answer
    x = 50,270.31

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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.