Home / 209,556.66-314,331.92-51,785.12

Finding the Fourth Proportional to 209,556.66, 314,331.92 and 51,785.12

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Solution

The fourth proportional to 209,556.66, 314,331.92 and 51,785.12 is: 77,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,556.66 : 314,331.92 = 51,785.12 : x
  2. Step 2: Convert to fraction form
    209,556.66/314,331.92 = 51,785.12/x
  3. Step 3: Cross multiply
    209,556.66x = 314,331.92 × 51,785.12
  4. Step 4: Simplify right side
    209,556.66x = 16,277,715,933.58
  5. Step 5: Solve for x
    x = 16,277,715,933.58/209,556.66
  6. Step 6: Final answer
    x = 77,676.92

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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.