Home / 82,815.92-124,185.66-26,645.60

Finding the Fourth Proportional to 82,815.92, 124,185.66 and 26,645.60

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Solution

The fourth proportional to 82,815.92, 124,185.66 and 26,645.60 is: 39,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,815.92 : 124,185.66 = 26,645.60 : x
  2. Step 2: Convert to fraction form
    82,815.92/124,185.66 = 26,645.60/x
  3. Step 3: Cross multiply
    82,815.92x = 124,185.66 × 26,645.60
  4. Step 4: Simplify right side
    82,815.92x = 3,309,001,422.10
  5. Step 5: Solve for x
    x = 3,309,001,422.10/82,815.92
  6. Step 6: Final answer
    x = 39,956.10

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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.