Home / 82,046.39-123,326.49-54,145.74

Finding the Fourth Proportional to 82,046.39, 123,326.49 and 54,145.74

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Solution

The fourth proportional to 82,046.39, 123,326.49 and 54,145.74 is: 81,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,046.39 : 123,326.49 = 54,145.74 : x
  2. Step 2: Convert to fraction form
    82,046.39/123,326.49 = 54,145.74/x
  3. Step 3: Cross multiply
    82,046.39x = 123,326.49 × 54,145.74
  4. Step 4: Simplify right side
    82,046.39x = 6,677,604,226.65
  5. Step 5: Solve for x
    x = 6,677,604,226.65/82,046.39
  6. Step 6: Final answer
    x = 81,388.15

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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.