Home / 76,895.43-115,332.52-20,738.94

Finding the Fourth Proportional to 76,895.43, 115,332.52 and 20,738.94

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Solution

The fourth proportional to 76,895.43, 115,332.52 and 20,738.94 is: 31,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895.43 : 115,332.52 = 20,738.94 : x
  2. Step 2: Convert to fraction form
    76,895.43/115,332.52 = 20,738.94/x
  3. Step 3: Cross multiply
    76,895.43x = 115,332.52 × 20,738.94
  4. Step 4: Simplify right side
    76,895.43x = 2,391,873,708.54
  5. Step 5: Solve for x
    x = 2,391,873,708.54/76,895.43
  6. Step 6: Final answer
    x = 31,105.54

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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.