Home / 68,365.04-102,550.56-20,976.60

Finding the Fourth Proportional to 68,365.04, 102,550.56 and 20,976.60

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Solution

The fourth proportional to 68,365.04, 102,550.56 and 20,976.60 is: 31,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,365.04 : 102,550.56 = 20,976.60 : x
  2. Step 2: Convert to fraction form
    68,365.04/102,550.56 = 20,976.60/x
  3. Step 3: Cross multiply
    68,365.04x = 102,550.56 × 20,976.60
  4. Step 4: Simplify right side
    68,365.04x = 2,151,162,076.90
  5. Step 5: Solve for x
    x = 2,151,162,076.90/68,365.04
  6. Step 6: Final answer
    x = 31,465.82

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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.