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Finding the Fourth Proportional to 84,012.31, 115,936.92 and 46,286.56

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Solution

The fourth proportional to 84,012.31, 115,936.92 and 46,286.56 is: 63,875.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012.31 : 115,936.92 = 46,286.56 : x
  2. Step 2: Convert to fraction form
    84,012.31/115,936.92 = 46,286.56/x
  3. Step 3: Cross multiply
    84,012.31x = 115,936.92 × 46,286.56
  4. Step 4: Simplify right side
    84,012.31x = 5,366,320,624.11
  5. Step 5: Solve for x
    x = 5,366,320,624.11/84,012.31
  6. Step 6: Final answer
    x = 63,875.41

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1.5x scale

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.