Home / 82,389.24-123,536.88-26,218.44

Finding the Fourth Proportional to 82,389.24, 123,536.88 and 26,218.44

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Solution

The fourth proportional to 82,389.24, 123,536.88 and 26,218.44 is: 39,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,389.24 : 123,536.88 = 26,218.44 : x
  2. Step 2: Convert to fraction form
    82,389.24/123,536.88 = 26,218.44/x
  3. Step 3: Cross multiply
    82,389.24x = 123,536.88 × 26,218.44
  4. Step 4: Simplify right side
    82,389.24x = 3,238,944,276.07
  5. Step 5: Solve for x
    x = 3,238,944,276.07/82,389.24
  6. Step 6: Final answer
    x = 39,312.71

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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.