Home / 31,146.66-46,719.75-7,772.94

Finding the Fourth Proportional to 31,146.66, 46,719.75 and 7,772.94

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Solution

The fourth proportional to 31,146.66, 46,719.75 and 7,772.94 is: 11,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,146.66 : 46,719.75 = 7,772.94 : x
  2. Step 2: Convert to fraction form
    31,146.66/46,719.75 = 7,772.94/x
  3. Step 3: Cross multiply
    31,146.66x = 46,719.75 × 7,772.94
  4. Step 4: Simplify right side
    31,146.66x = 363,149,813.57
  5. Step 5: Solve for x
    x = 363,149,813.57/31,146.66
  6. Step 6: Final answer
    x = 11,659.35

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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.