Home / 55,231.40-76,220.20-30,080.88

Finding the Fourth Proportional to 55,231.40, 76,220.20 and 30,080.88

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Solution

The fourth proportional to 55,231.40, 76,220.20 and 30,080.88 is: 41,512.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,231.40 : 76,220.20 = 30,080.88 : x
  2. Step 2: Convert to fraction form
    55,231.40/76,220.20 = 30,080.88/x
  3. Step 3: Cross multiply
    55,231.40x = 76,220.20 × 30,080.88
  4. Step 4: Simplify right side
    55,231.40x = 2,292,770,689.78
  5. Step 5: Solve for x
    x = 2,292,770,689.78/55,231.40
  6. Step 6: Final answer
    x = 41,512.09

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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.