Home / 81,826.85-112,936.58-51,214.16

Finding the Fourth Proportional to 81,826.85, 112,936.58 and 51,214.16

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Solution

The fourth proportional to 81,826.85, 112,936.58 and 51,214.16 is: 70,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,826.85 : 112,936.58 = 51,214.16 : x
  2. Step 2: Convert to fraction form
    81,826.85/112,936.58 = 51,214.16/x
  3. Step 3: Cross multiply
    81,826.85x = 112,936.58 × 51,214.16
  4. Step 4: Simplify right side
    81,826.85x = 5,783,951,257.22
  5. Step 5: Solve for x
    x = 5,783,951,257.22/81,826.85
  6. Step 6: Final answer
    x = 70,685.25

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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.