Home / 81,659.10-112,701.87-49,846.44

Finding the Fourth Proportional to 81,659.10, 112,701.87 and 49,846.44

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Solution

The fourth proportional to 81,659.10, 112,701.87 and 49,846.44 is: 68,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,659.10 : 112,701.87 = 49,846.44 : x
  2. Step 2: Convert to fraction form
    81,659.10/112,701.87 = 49,846.44/x
  3. Step 3: Cross multiply
    81,659.10x = 112,701.87 × 49,846.44
  4. Step 4: Simplify right side
    81,659.10x = 5,617,787,000.84
  5. Step 5: Solve for x
    x = 5,617,787,000.84/81,659.10
  6. Step 6: Final answer
    x = 68,795.60

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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.