Home / 81,286.43-112,170.69-44,985.87

Finding the Fourth Proportional to 81,286.43, 112,170.69 and 44,985.87

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Solution

The fourth proportional to 81,286.43, 112,170.69 and 44,985.87 is: 62,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,286.43 : 112,170.69 = 44,985.87 : x
  2. Step 2: Convert to fraction form
    81,286.43/112,170.69 = 44,985.87/x
  3. Step 3: Cross multiply
    81,286.43x = 112,170.69 × 44,985.87
  4. Step 4: Simplify right side
    81,286.43x = 5,046,096,078.15
  5. Step 5: Solve for x
    x = 5,046,096,078.15/81,286.43
  6. Step 6: Final answer
    x = 62,077.97

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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.