Home / 81,936.77-113,072.63-46,138.34

Finding the Fourth Proportional to 81,936.77, 113,072.63 and 46,138.34

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Solution

The fourth proportional to 81,936.77, 113,072.63 and 46,138.34 is: 63,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,936.77 : 113,072.63 = 46,138.34 : x
  2. Step 2: Convert to fraction form
    81,936.77/113,072.63 = 46,138.34/x
  3. Step 3: Cross multiply
    81,936.77x = 113,072.63 × 46,138.34
  4. Step 4: Simplify right side
    81,936.77x = 5,216,983,499.62
  5. Step 5: Solve for x
    x = 5,216,983,499.62/81,936.77
  6. Step 6: Final answer
    x = 63,670.85

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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.