Home / 82,286.05-123,429.08-28,965.47

Finding the Fourth Proportional to 82,286.05, 123,429.08 and 28,965.47

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Solution

The fourth proportional to 82,286.05, 123,429.08 and 28,965.47 is: 43,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,286.05 : 123,429.08 = 28,965.47 : x
  2. Step 2: Convert to fraction form
    82,286.05/123,429.08 = 28,965.47/x
  3. Step 3: Cross multiply
    82,286.05x = 123,429.08 × 28,965.47
  4. Step 4: Simplify right side
    82,286.05x = 3,575,181,313.87
  5. Step 5: Solve for x
    x = 3,575,181,313.87/82,286.05
  6. Step 6: Final answer
    x = 43,448.21

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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.