Home / 55,172.58-82,708.71-20,104.26

Finding the Fourth Proportional to 55,172.58, 82,708.71 and 20,104.26

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Solution

The fourth proportional to 55,172.58, 82,708.71 and 20,104.26 is: 30,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.58 : 82,708.71 = 20,104.26 : x
  2. Step 2: Convert to fraction form
    55,172.58/82,708.71 = 20,104.26/x
  3. Step 3: Cross multiply
    55,172.58x = 82,708.71 × 20,104.26
  4. Step 4: Simplify right side
    55,172.58x = 1,662,797,410.10
  5. Step 5: Solve for x
    x = 1,662,797,410.10/55,172.58
  6. Step 6: Final answer
    x = 30,138.11

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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.