Home / 49,830.21-74,765.57-20,250.36

Finding the Fourth Proportional to 49,830.21, 74,765.57 and 20,250.36

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Solution

The fourth proportional to 49,830.21, 74,765.57 and 20,250.36 is: 30,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,830.21 : 74,765.57 = 20,250.36 : x
  2. Step 2: Convert to fraction form
    49,830.21/74,765.57 = 20,250.36/x
  3. Step 3: Cross multiply
    49,830.21x = 74,765.57 × 20,250.36
  4. Step 4: Simplify right side
    49,830.21x = 1,514,029,606.85
  5. Step 5: Solve for x
    x = 1,514,029,606.85/49,830.21
  6. Step 6: Final answer
    x = 30,383.77

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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.