Home / 31,149.16-46,723.50-7,775.44

Finding the Fourth Proportional to 31,149.16, 46,723.50 and 7,775.44

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Solution

The fourth proportional to 31,149.16, 46,723.50 and 7,775.44 is: 11,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,149.16 : 46,723.50 = 7,775.44 : x
  2. Step 2: Convert to fraction form
    31,149.16/46,723.50 = 7,775.44/x
  3. Step 3: Cross multiply
    31,149.16x = 46,723.50 × 7,775.44
  4. Step 4: Simplify right side
    31,149.16x = 363,295,770.84
  5. Step 5: Solve for x
    x = 363,295,770.84/31,149.16
  6. Step 6: Final answer
    x = 11,663.10

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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.