Home / 76,789.46-115,161.63-26,860.25

Finding the Fourth Proportional to 76,789.46, 115,161.63 and 26,860.25

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Solution

The fourth proportional to 76,789.46, 115,161.63 and 26,860.25 is: 40,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789.46 : 115,161.63 = 26,860.25 : x
  2. Step 2: Convert to fraction form
    76,789.46/115,161.63 = 26,860.25/x
  3. Step 3: Cross multiply
    76,789.46x = 115,161.63 × 26,860.25
  4. Step 4: Simplify right side
    76,789.46x = 3,093,270,172.21
  5. Step 5: Solve for x
    x = 3,093,270,172.21/76,789.46
  6. Step 6: Final answer
    x = 40,282.48

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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.