Home / 81,991.89-113,149.44-46,178.55

Finding the Fourth Proportional to 81,991.89, 113,149.44 and 46,178.55

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Solution

The fourth proportional to 81,991.89, 113,149.44 and 46,178.55 is: 63,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,991.89 : 113,149.44 = 46,178.55 : x
  2. Step 2: Convert to fraction form
    81,991.89/113,149.44 = 46,178.55/x
  3. Step 3: Cross multiply
    81,991.89x = 113,149.44 × 46,178.55
  4. Step 4: Simplify right side
    81,991.89x = 5,225,077,072.51
  5. Step 5: Solve for x
    x = 5,225,077,072.51/81,991.89
  6. Step 6: Final answer
    x = 63,726.75

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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.