Home / 313,826.72-470,735.96-77,171.44

Finding the Fourth Proportional to 313,826.72, 470,735.96 and 77,171.44

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Solution

The fourth proportional to 313,826.72, 470,735.96 and 77,171.44 is: 115,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,826.72 : 470,735.96 = 77,171.44 : x
  2. Step 2: Convert to fraction form
    313,826.72/470,735.96 = 77,171.44/x
  3. Step 3: Cross multiply
    313,826.72x = 470,735.96 × 77,171.44
  4. Step 4: Simplify right side
    313,826.72x = 36,327,371,892.98
  5. Step 5: Solve for x
    x = 36,327,371,892.98/313,826.72
  6. Step 6: Final answer
    x = 115,756.15

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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.