Home / 81,739.73-112,760.81-49,853.27

Finding the Fourth Proportional to 81,739.73, 112,760.81 and 49,853.27

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Solution

The fourth proportional to 81,739.73, 112,760.81 and 49,853.27 is: 68,773.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,739.73 : 112,760.81 = 49,853.27 : x
  2. Step 2: Convert to fraction form
    81,739.73/112,760.81 = 49,853.27/x
  3. Step 3: Cross multiply
    81,739.73x = 112,760.81 × 49,853.27
  4. Step 4: Simplify right side
    81,739.73x = 5,621,495,325.93
  5. Step 5: Solve for x
    x = 5,621,495,325.93/81,739.73
  6. Step 6: Final answer
    x = 68,773.11

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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.