Home / 81,144.91-121,706.02-27,836.01

Finding the Fourth Proportional to 81,144.91, 121,706.02 and 27,836.01

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Solution

The fourth proportional to 81,144.91, 121,706.02 and 27,836.01 is: 41,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,144.91 : 121,706.02 = 27,836.01 : x
  2. Step 2: Convert to fraction form
    81,144.91/121,706.02 = 27,836.01/x
  3. Step 3: Cross multiply
    81,144.91x = 121,706.02 × 27,836.01
  4. Step 4: Simplify right side
    81,144.91x = 3,387,810,189.66
  5. Step 5: Solve for x
    x = 3,387,810,189.66/81,144.91
  6. Step 6: Final answer
    x = 41,750.13

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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.