Home / 81,863.01-112,986.43-51,250.34

Finding the Fourth Proportional to 81,863.01, 112,986.43 and 51,250.34

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Solution

The fourth proportional to 81,863.01, 112,986.43 and 51,250.34 is: 70,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.01 : 112,986.43 = 51,250.34 : x
  2. Step 2: Convert to fraction form
    81,863.01/112,986.43 = 51,250.34/x
  3. Step 3: Cross multiply
    81,863.01x = 112,986.43 × 51,250.34
  4. Step 4: Simplify right side
    81,863.01x = 5,790,593,107.23
  5. Step 5: Solve for x
    x = 5,790,593,107.23/81,863.01
  6. Step 6: Final answer
    x = 70,735.16

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1.5x scale

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.