Home / 77,286.96-115,914.56-48,815.24

Finding the Fourth Proportional to 77,286.96, 115,914.56 and 48,815.24

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Solution

The fourth proportional to 77,286.96, 115,914.56 and 48,815.24 is: 73,212.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286.96 : 115,914.56 = 48,815.24 : x
  2. Step 2: Convert to fraction form
    77,286.96/115,914.56 = 48,815.24/x
  3. Step 3: Cross multiply
    77,286.96x = 115,914.56 × 48,815.24
  4. Step 4: Simplify right side
    77,286.96x = 5,658,396,242.25
  5. Step 5: Solve for x
    x = 5,658,396,242.25/77,286.96
  6. Step 6: Final answer
    x = 73,212.82

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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.