Home / 55,321.20-76,343.34-30,170.70

Finding the Fourth Proportional to 55,321.20, 76,343.34 and 30,170.70

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Solution

The fourth proportional to 55,321.20, 76,343.34 and 30,170.70 is: 41,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.20 : 76,343.34 = 30,170.70 : x
  2. Step 2: Convert to fraction form
    55,321.20/76,343.34 = 30,170.70/x
  3. Step 3: Cross multiply
    55,321.20x = 76,343.34 × 30,170.70
  4. Step 4: Simplify right side
    55,321.20x = 2,303,332,008.14
  5. Step 5: Solve for x
    x = 2,303,332,008.14/55,321.20
  6. Step 6: Final answer
    x = 41,635.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.