Home / 81,055.88-111,857.19-45,245.84

Finding the Fourth Proportional to 81,055.88, 111,857.19 and 45,245.84

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Solution

The fourth proportional to 81,055.88, 111,857.19 and 45,245.84 is: 62,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,055.88 : 111,857.19 = 45,245.84 : x
  2. Step 2: Convert to fraction form
    81,055.88/111,857.19 = 45,245.84/x
  3. Step 3: Cross multiply
    81,055.88x = 111,857.19 × 45,245.84
  4. Step 4: Simplify right side
    81,055.88x = 5,061,072,521.59
  5. Step 5: Solve for x
    x = 5,061,072,521.59/81,055.88
  6. Step 6: Final answer
    x = 62,439.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.