Home / 81,918.43-113,047.40-46,108.63

Finding the Fourth Proportional to 81,918.43, 113,047.40 and 46,108.63

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Solution

The fourth proportional to 81,918.43, 113,047.40 and 46,108.63 is: 63,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,918.43 : 113,047.40 = 46,108.63 : x
  2. Step 2: Convert to fraction form
    81,918.43/113,047.40 = 46,108.63/x
  3. Step 3: Cross multiply
    81,918.43x = 113,047.40 × 46,108.63
  4. Step 4: Simplify right side
    81,918.43x = 5,212,460,571.72
  5. Step 5: Solve for x
    x = 5,212,460,571.72/81,918.43
  6. Step 6: Final answer
    x = 63,629.89

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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.