Home / 55,037.07-82,555.61-21,772.80

Finding the Fourth Proportional to 55,037.07, 82,555.61 and 21,772.80

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Solution

The fourth proportional to 55,037.07, 82,555.61 and 21,772.80 is: 32,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,037.07 : 82,555.61 = 21,772.80 : x
  2. Step 2: Convert to fraction form
    55,037.07/82,555.61 = 21,772.80/x
  3. Step 3: Cross multiply
    55,037.07x = 82,555.61 × 21,772.80
  4. Step 4: Simplify right side
    55,037.07x = 1,797,466,676.54
  5. Step 5: Solve for x
    x = 1,797,466,676.54/55,037.07
  6. Step 6: Final answer
    x = 32,659.20

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Similar ratio
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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.