Home / 83,961.36-115,865.00-45,721.36

Finding the Fourth Proportional to 83,961.36, 115,865.00 and 45,721.36

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Solution

The fourth proportional to 83,961.36, 115,865.00 and 45,721.36 is: 63,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,961.36 : 115,865.00 = 45,721.36 : x
  2. Step 2: Convert to fraction form
    83,961.36/115,865.00 = 45,721.36/x
  3. Step 3: Cross multiply
    83,961.36x = 115,865.00 × 45,721.36
  4. Step 4: Simplify right side
    83,961.36x = 5,297,505,464.08
  5. Step 5: Solve for x
    x = 5,297,505,464.08/83,961.36
  6. Step 6: Final answer
    x = 63,094.56

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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.