Home / 82,519.04-123,758.64-38,103.09

Finding the Fourth Proportional to 82,519.04, 123,758.64 and 38,103.09

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Solution

The fourth proportional to 82,519.04, 123,758.64 and 38,103.09 is: 57,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,519.04 : 123,758.64 = 38,103.09 : x
  2. Step 2: Convert to fraction form
    82,519.04/123,758.64 = 38,103.09/x
  3. Step 3: Cross multiply
    82,519.04x = 123,758.64 × 38,103.09
  4. Step 4: Simplify right side
    82,519.04x = 4,715,586,598.20
  5. Step 5: Solve for x
    x = 4,715,586,598.20/82,519.04
  6. Step 6: Final answer
    x = 57,145.44

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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.