Home / 81,739.32-122,608.82-22,574.84

Finding the Fourth Proportional to 81,739.32, 122,608.82 and 22,574.84

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Solution

The fourth proportional to 81,739.32, 122,608.82 and 22,574.84 is: 33,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,739.32 : 122,608.82 = 22,574.84 : x
  2. Step 2: Convert to fraction form
    81,739.32/122,608.82 = 22,574.84/x
  3. Step 3: Cross multiply
    81,739.32x = 122,608.82 × 22,574.84
  4. Step 4: Simplify right side
    81,739.32x = 2,767,874,494.09
  5. Step 5: Solve for x
    x = 2,767,874,494.09/81,739.32
  6. Step 6: Final answer
    x = 33,862.22

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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.