Home / 55,218.48-82,833.20-20,160.88

Finding the Fourth Proportional to 55,218.48, 82,833.20 and 20,160.88

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Solution

The fourth proportional to 55,218.48, 82,833.20 and 20,160.88 is: 30,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,218.48 : 82,833.20 = 20,160.88 : x
  2. Step 2: Convert to fraction form
    55,218.48/82,833.20 = 20,160.88/x
  3. Step 3: Cross multiply
    55,218.48x = 82,833.20 × 20,160.88
  4. Step 4: Simplify right side
    55,218.48x = 1,669,990,205.22
  5. Step 5: Solve for x
    x = 1,669,990,205.22/55,218.48
  6. Step 6: Final answer
    x = 30,243.32

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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.