Home / 82,172.19-123,271.92-28,850.33

Finding the Fourth Proportional to 82,172.19, 123,271.92 and 28,850.33

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Solution

The fourth proportional to 82,172.19, 123,271.92 and 28,850.33 is: 43,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,172.19 : 123,271.92 = 28,850.33 : x
  2. Step 2: Convert to fraction form
    82,172.19/123,271.92 = 28,850.33/x
  3. Step 3: Cross multiply
    82,172.19x = 123,271.92 × 28,850.33
  4. Step 4: Simplify right side
    82,172.19x = 3,556,434,955.37
  5. Step 5: Solve for x
    x = 3,556,434,955.37/82,172.19
  6. Step 6: Final answer
    x = 43,280.27

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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.