Home / 76,795.28-115,174.46-39,336.07

Finding the Fourth Proportional to 76,795.28, 115,174.46 and 39,336.07

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Solution

The fourth proportional to 76,795.28, 115,174.46 and 39,336.07 is: 58,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,795.28 : 115,174.46 = 39,336.07 : x
  2. Step 2: Convert to fraction form
    76,795.28/115,174.46 = 39,336.07/x
  3. Step 3: Cross multiply
    76,795.28x = 115,174.46 × 39,336.07
  4. Step 4: Simplify right side
    76,795.28x = 4,530,509,946.56
  5. Step 5: Solve for x
    x = 4,530,509,946.56/76,795.28
  6. Step 6: Final answer
    x = 58,994.64

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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.