Home / 81,908.29-113,068.31-55,066.37

Finding the Fourth Proportional to 81,908.29, 113,068.31 and 55,066.37

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Solution

The fourth proportional to 81,908.29, 113,068.31 and 55,066.37 is: 76,015.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908.29 : 113,068.31 = 55,066.37 : x
  2. Step 2: Convert to fraction form
    81,908.29/113,068.31 = 55,066.37/x
  3. Step 3: Cross multiply
    81,908.29x = 113,068.31 × 55,066.37
  4. Step 4: Simplify right side
    81,908.29x = 6,226,261,393.73
  5. Step 5: Solve for x
    x = 6,226,261,393.73/81,908.29
  6. Step 6: Final answer
    x = 76,015.03

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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.