Home / 55,182.87-82,785.24-21,918.60

Finding the Fourth Proportional to 55,182.87, 82,785.24 and 21,918.60

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Solution

The fourth proportional to 55,182.87, 82,785.24 and 21,918.60 is: 32,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,182.87 : 82,785.24 = 21,918.60 : x
  2. Step 2: Convert to fraction form
    55,182.87/82,785.24 = 21,918.60/x
  3. Step 3: Cross multiply
    55,182.87x = 82,785.24 × 21,918.60
  4. Step 4: Simplify right side
    55,182.87x = 1,814,536,561.46
  5. Step 5: Solve for x
    x = 1,814,536,561.46/55,182.87
  6. Step 6: Final answer
    x = 32,882.24

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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.