Home / 76,286.58-114,429.96-31,889.04

Finding the Fourth Proportional to 76,286.58, 114,429.96 and 31,889.04

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Solution

The fourth proportional to 76,286.58, 114,429.96 and 31,889.04 is: 47,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,286.58 : 114,429.96 = 31,889.04 : x
  2. Step 2: Convert to fraction form
    76,286.58/114,429.96 = 31,889.04/x
  3. Step 3: Cross multiply
    76,286.58x = 114,429.96 × 31,889.04
  4. Step 4: Simplify right side
    76,286.58x = 3,649,061,571.64
  5. Step 5: Solve for x
    x = 3,649,061,571.64/76,286.58
  6. Step 6: Final answer
    x = 47,833.60

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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.