Home / 81,391.45-112,326.83-46,947.37

Finding the Fourth Proportional to 81,391.45, 112,326.83 and 46,947.37

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Solution

The fourth proportional to 81,391.45, 112,326.83 and 46,947.37 is: 64,791.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,391.45 : 112,326.83 = 46,947.37 : x
  2. Step 2: Convert to fraction form
    81,391.45/112,326.83 = 46,947.37/x
  3. Step 3: Cross multiply
    81,391.45x = 112,326.83 × 46,947.37
  4. Step 4: Simplify right side
    81,391.45x = 5,273,449,248.94
  5. Step 5: Solve for x
    x = 5,273,449,248.94/81,391.45
  6. Step 6: Final answer
    x = 64,791.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.