Home / 209,082.20-313,623.30-51,308.60

Finding the Fourth Proportional to 209,082.20, 313,623.30 and 51,308.60

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Solution

The fourth proportional to 209,082.20, 313,623.30 and 51,308.60 is: 76,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,082.20 : 313,623.30 = 51,308.60 : x
  2. Step 2: Convert to fraction form
    209,082.20/313,623.30 = 51,308.60/x
  3. Step 3: Cross multiply
    209,082.20x = 313,623.30 × 51,308.60
  4. Step 4: Simplify right side
    209,082.20x = 16,091,572,450.38
  5. Step 5: Solve for x
    x = 16,091,572,450.38/209,082.20
  6. Step 6: Final answer
    x = 76,962.90

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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.