Home / 81,945.69-113,087.19-46,137.02

Finding the Fourth Proportional to 81,945.69, 113,087.19 and 46,137.02

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Solution

The fourth proportional to 81,945.69, 113,087.19 and 46,137.02 is: 63,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,945.69 : 113,087.19 = 46,137.02 : x
  2. Step 2: Convert to fraction form
    81,945.69/113,087.19 = 46,137.02/x
  3. Step 3: Cross multiply
    81,945.69x = 113,087.19 × 46,137.02
  4. Step 4: Simplify right side
    81,945.69x = 5,217,505,381.34
  5. Step 5: Solve for x
    x = 5,217,505,381.34/81,945.69
  6. Step 6: Final answer
    x = 63,670.28

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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.