Home / 76,995.36-115,441.20-39,508.56

Finding the Fourth Proportional to 76,995.36, 115,441.20 and 39,508.56

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Solution

The fourth proportional to 76,995.36, 115,441.20 and 39,508.56 is: 59,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,995.36 : 115,441.20 = 39,508.56 : x
  2. Step 2: Convert to fraction form
    76,995.36/115,441.20 = 39,508.56/x
  3. Step 3: Cross multiply
    76,995.36x = 115,441.20 × 39,508.56
  4. Step 4: Simplify right side
    76,995.36x = 4,560,915,576.67
  5. Step 5: Solve for x
    x = 4,560,915,576.67/76,995.36
  6. Step 6: Final answer
    x = 59,236.24

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1.5x scale

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.