Home / 81,932.81-113,062.97-46,121.63

Finding the Fourth Proportional to 81,932.81, 113,062.97 and 46,121.63

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Solution

The fourth proportional to 81,932.81, 113,062.97 and 46,121.63 is: 63,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,932.81 : 113,062.97 = 46,121.63 : x
  2. Step 2: Convert to fraction form
    81,932.81/113,062.97 = 46,121.63/x
  3. Step 3: Cross multiply
    81,932.81x = 113,062.97 × 46,121.63
  4. Step 4: Simplify right side
    81,932.81x = 5,214,648,019.03
  5. Step 5: Solve for x
    x = 5,214,648,019.03/81,932.81
  6. Step 6: Final answer
    x = 63,645.42

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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.