Home / 82,419.96-123,623.09-26,257.80

Finding the Fourth Proportional to 82,419.96, 123,623.09 and 26,257.80

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Solution

The fourth proportional to 82,419.96, 123,623.09 and 26,257.80 is: 39,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,419.96 : 123,623.09 = 26,257.80 : x
  2. Step 2: Convert to fraction form
    82,419.96/123,623.09 = 26,257.80/x
  3. Step 3: Cross multiply
    82,419.96x = 123,623.09 × 26,257.80
  4. Step 4: Simplify right side
    82,419.96x = 3,246,070,372.60
  5. Step 5: Solve for x
    x = 3,246,070,372.60/82,419.96
  6. Step 6: Final answer
    x = 39,384.52

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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.