Home / 81,770.86-112,844.79-49,505.04

Finding the Fourth Proportional to 81,770.86, 112,844.79 and 49,505.04

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Solution

The fourth proportional to 81,770.86, 112,844.79 and 49,505.04 is: 68,317.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.86 : 112,844.79 = 49,505.04 : x
  2. Step 2: Convert to fraction form
    81,770.86/112,844.79 = 49,505.04/x
  3. Step 3: Cross multiply
    81,770.86x = 112,844.79 × 49,505.04
  4. Step 4: Simplify right side
    81,770.86x = 5,586,385,842.74
  5. Step 5: Solve for x
    x = 5,586,385,842.74/81,770.86
  6. Step 6: Final answer
    x = 68,317.56

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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.