Home / 81,294.03-121,928.74-22,134.36

Finding the Fourth Proportional to 81,294.03, 121,928.74 and 22,134.36

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Solution

The fourth proportional to 81,294.03, 121,928.74 and 22,134.36 is: 33,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,294.03 : 121,928.74 = 22,134.36 : x
  2. Step 2: Convert to fraction form
    81,294.03/121,928.74 = 22,134.36/x
  3. Step 3: Cross multiply
    81,294.03x = 121,928.74 × 22,134.36
  4. Step 4: Simplify right side
    81,294.03x = 2,698,814,625.51
  5. Step 5: Solve for x
    x = 2,698,814,625.51/81,294.03
  6. Step 6: Final answer
    x = 33,198.19

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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.