Home / 81,744.75-122,616.96-22,580.25

Finding the Fourth Proportional to 81,744.75, 122,616.96 and 22,580.25

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Solution

The fourth proportional to 81,744.75, 122,616.96 and 22,580.25 is: 33,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.75 : 122,616.96 = 22,580.25 : x
  2. Step 2: Convert to fraction form
    81,744.75/122,616.96 = 22,580.25/x
  3. Step 3: Cross multiply
    81,744.75x = 122,616.96 × 22,580.25
  4. Step 4: Simplify right side
    81,744.75x = 2,768,720,997.96
  5. Step 5: Solve for x
    x = 2,768,720,997.96/81,744.75
  6. Step 6: Final answer
    x = 33,870.32

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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.