Home / 81,676.08-112,725.18-49,863.42

Finding the Fourth Proportional to 81,676.08, 112,725.18 and 49,863.42

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Solution

The fourth proportional to 81,676.08, 112,725.18 and 49,863.42 is: 68,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,676.08 : 112,725.18 = 49,863.42 : x
  2. Step 2: Convert to fraction form
    81,676.08/112,725.18 = 49,863.42/x
  3. Step 3: Cross multiply
    81,676.08x = 112,725.18 × 49,863.42
  4. Step 4: Simplify right side
    81,676.08x = 5,620,862,994.92
  5. Step 5: Solve for x
    x = 5,620,862,994.92/81,676.08
  6. Step 6: Final answer
    x = 68,818.96

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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.