Home / 79,857.28-110,202.84-45,868

Finding the Fourth Proportional to 79,857.28, 110,202.84 and 45,868

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Solution

The fourth proportional to 79,857.28, 110,202.84 and 45,868 is: 63,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,857.28 : 110,202.84 = 45,868 : x
  2. Step 2: Convert to fraction form
    79,857.28/110,202.84 = 45,868/x
  3. Step 3: Cross multiply
    79,857.28x = 110,202.84 × 45,868
  4. Step 4: Simplify right side
    79,857.28x = 5,054,783,865.12
  5. Step 5: Solve for x
    x = 5,054,783,865.12/79,857.28
  6. Step 6: Final answer
    x = 63,297.72

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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.