Home / 81,264.63-121,896.39-22,100.07

Finding the Fourth Proportional to 81,264.63, 121,896.39 and 22,100.07

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Solution

The fourth proportional to 81,264.63, 121,896.39 and 22,100.07 is: 33,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,264.63 : 121,896.39 = 22,100.07 : x
  2. Step 2: Convert to fraction form
    81,264.63/121,896.39 = 22,100.07/x
  3. Step 3: Cross multiply
    81,264.63x = 121,896.39 × 22,100.07
  4. Step 4: Simplify right side
    81,264.63x = 2,693,918,751.75
  5. Step 5: Solve for x
    x = 2,693,918,751.75/81,264.63
  6. Step 6: Final answer
    x = 33,149.95

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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.