Home / 81,869.41-122,797.08-49,840.17

Finding the Fourth Proportional to 81,869.41, 122,797.08 and 49,840.17

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Solution

The fourth proportional to 81,869.41, 122,797.08 and 49,840.17 is: 74,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869.41 : 122,797.08 = 49,840.17 : x
  2. Step 2: Convert to fraction form
    81,869.41/122,797.08 = 49,840.17/x
  3. Step 3: Cross multiply
    81,869.41x = 122,797.08 × 49,840.17
  4. Step 4: Simplify right side
    81,869.41x = 6,120,226,728.72
  5. Step 5: Solve for x
    x = 6,120,226,728.72/81,869.41
  6. Step 6: Final answer
    x = 74,755.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.