Home / 81,282.01-121,910.69-22,122.29

Finding the Fourth Proportional to 81,282.01, 121,910.69 and 22,122.29

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Solution

The fourth proportional to 81,282.01, 121,910.69 and 22,122.29 is: 33,180.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.01 : 121,910.69 = 22,122.29 : x
  2. Step 2: Convert to fraction form
    81,282.01/121,910.69 = 22,122.29/x
  3. Step 3: Cross multiply
    81,282.01x = 121,910.69 × 22,122.29
  4. Step 4: Simplify right side
    81,282.01x = 2,696,943,638.28
  5. Step 5: Solve for x
    x = 2,696,943,638.28/81,282.01
  6. Step 6: Final answer
    x = 33,180.08

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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.