Home / 79,798.14-110,121.78-43,987.38

Finding the Fourth Proportional to 79,798.14, 110,121.78 and 43,987.38

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Solution

The fourth proportional to 79,798.14, 110,121.78 and 43,987.38 is: 60,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.14 : 110,121.78 = 43,987.38 : x
  2. Step 2: Convert to fraction form
    79,798.14/110,121.78 = 43,987.38/x
  3. Step 3: Cross multiply
    79,798.14x = 110,121.78 × 43,987.38
  4. Step 4: Simplify right side
    79,798.14x = 4,843,968,583.14
  5. Step 5: Solve for x
    x = 4,843,968,583.14/79,798.14
  6. Step 6: Final answer
    x = 60,702.78

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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.