Home / 55,865.22-83,780.04-18,418.30

Finding the Fourth Proportional to 55,865.22, 83,780.04 and 18,418.30

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Solution

The fourth proportional to 55,865.22, 83,780.04 and 18,418.30 is: 27,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,865.22 : 83,780.04 = 18,418.30 : x
  2. Step 2: Convert to fraction form
    55,865.22/83,780.04 = 18,418.30/x
  3. Step 3: Cross multiply
    55,865.22x = 83,780.04 × 18,418.30
  4. Step 4: Simplify right side
    55,865.22x = 1,543,085,910.73
  5. Step 5: Solve for x
    x = 1,543,085,910.73/55,865.22
  6. Step 6: Final answer
    x = 27,621.58

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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.