Home / 81,806.30-112,912.74-50,001.86

Finding the Fourth Proportional to 81,806.30, 112,912.74 and 50,001.86

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Solution

The fourth proportional to 81,806.30, 112,912.74 and 50,001.86 is: 69,014.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,806.30 : 112,912.74 = 50,001.86 : x
  2. Step 2: Convert to fraction form
    81,806.30/112,912.74 = 50,001.86/x
  3. Step 3: Cross multiply
    81,806.30x = 112,912.74 × 50,001.86
  4. Step 4: Simplify right side
    81,806.30x = 5,645,847,017.70
  5. Step 5: Solve for x
    x = 5,645,847,017.70/81,806.30
  6. Step 6: Final answer
    x = 69,014.82

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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.