Home / 81,075.97-121,601.48-27,041.61

Finding the Fourth Proportional to 81,075.97, 121,601.48 and 27,041.61

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Solution

The fourth proportional to 81,075.97, 121,601.48 and 27,041.61 is: 40,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,075.97 : 121,601.48 = 27,041.61 : x
  2. Step 2: Convert to fraction form
    81,075.97/121,601.48 = 27,041.61/x
  3. Step 3: Cross multiply
    81,075.97x = 121,601.48 × 27,041.61
  4. Step 4: Simplify right side
    81,075.97x = 3,288,299,797.58
  5. Step 5: Solve for x
    x = 3,288,299,797.58/81,075.97
  6. Step 6: Final answer
    x = 40,558.25

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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.