Home / 81,738.51-122,609.31-22,575.75

Finding the Fourth Proportional to 81,738.51, 122,609.31 and 22,575.75

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Solution

The fourth proportional to 81,738.51, 122,609.31 and 22,575.75 is: 33,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738.51 : 122,609.31 = 22,575.75 : x
  2. Step 2: Convert to fraction form
    81,738.51/122,609.31 = 22,575.75/x
  3. Step 3: Cross multiply
    81,738.51x = 122,609.31 × 22,575.75
  4. Step 4: Simplify right side
    81,738.51x = 2,767,997,130.23
  5. Step 5: Solve for x
    x = 2,767,997,130.23/81,738.51
  6. Step 6: Final answer
    x = 33,864.05

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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.