Home / 81,305.04-121,957.56-53,596.56

Finding the Fourth Proportional to 81,305.04, 121,957.56 and 53,596.56

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Solution

The fourth proportional to 81,305.04, 121,957.56 and 53,596.56 is: 80,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,305.04 : 121,957.56 = 53,596.56 : x
  2. Step 2: Convert to fraction form
    81,305.04/121,957.56 = 53,596.56/x
  3. Step 3: Cross multiply
    81,305.04x = 121,957.56 × 53,596.56
  4. Step 4: Simplify right side
    81,305.04x = 6,536,504,804.22
  5. Step 5: Solve for x
    x = 6,536,504,804.22/81,305.04
  6. Step 6: Final answer
    x = 80,394.83

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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.