Home / 55,215.38-82,821.24-17,777.58

Finding the Fourth Proportional to 55,215.38, 82,821.24 and 17,777.58

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Solution

The fourth proportional to 55,215.38, 82,821.24 and 17,777.58 is: 26,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.38 : 82,821.24 = 17,777.58 : x
  2. Step 2: Convert to fraction form
    55,215.38/82,821.24 = 17,777.58/x
  3. Step 3: Cross multiply
    55,215.38x = 82,821.24 × 17,777.58
  4. Step 4: Simplify right side
    55,215.38x = 1,472,361,219.80
  5. Step 5: Solve for x
    x = 1,472,361,219.80/55,215.38
  6. Step 6: Final answer
    x = 26,665.78

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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.