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Finding the Fourth Proportional to 81,804.46, 112,910.20 and 50,000.02

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Solution

The fourth proportional to 81,804.46, 112,910.20 and 50,000.02 is: 69,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,804.46 : 112,910.20 = 50,000.02 : x
  2. Step 2: Convert to fraction form
    81,804.46/112,910.20 = 50,000.02/x
  3. Step 3: Cross multiply
    81,804.46x = 112,910.20 × 50,000.02
  4. Step 4: Simplify right side
    81,804.46x = 5,645,511,647.29
  5. Step 5: Solve for x
    x = 5,645,511,647.29/81,804.46
  6. Step 6: Final answer
    x = 69,012.28

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1.5x scale

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.