Home / 55,261.20-82,891.80-51,324.60

Finding the Fourth Proportional to 55,261.20, 82,891.80 and 51,324.60

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Solution

The fourth proportional to 55,261.20, 82,891.80 and 51,324.60 is: 76,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,261.20 : 82,891.80 = 51,324.60 : x
  2. Step 2: Convert to fraction form
    55,261.20/82,891.80 = 51,324.60/x
  3. Step 3: Cross multiply
    55,261.20x = 82,891.80 × 51,324.60
  4. Step 4: Simplify right side
    55,261.20x = 4,254,388,478.28
  5. Step 5: Solve for x
    x = 4,254,388,478.28/55,261.20
  6. Step 6: Final answer
    x = 76,986.90

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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.