Home / 81,763.94-112,825.20-49,056.61

Finding the Fourth Proportional to 81,763.94, 112,825.20 and 49,056.61

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Solution

The fourth proportional to 81,763.94, 112,825.20 and 49,056.61 is: 67,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,763.94 : 112,825.20 = 49,056.61 : x
  2. Step 2: Convert to fraction form
    81,763.94/112,825.20 = 49,056.61/x
  3. Step 3: Cross multiply
    81,763.94x = 112,825.20 × 49,056.61
  4. Step 4: Simplify right side
    81,763.94x = 5,534,821,589.29
  5. Step 5: Solve for x
    x = 5,534,821,589.29/81,763.94
  6. Step 6: Final answer
    x = 67,692.70

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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.