Home / 82,265.76-123,383.08-40,103.52

Finding the Fourth Proportional to 82,265.76, 123,383.08 and 40,103.52

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Solution

The fourth proportional to 82,265.76, 123,383.08 and 40,103.52 is: 60,147.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,265.76 : 123,383.08 = 40,103.52 : x
  2. Step 2: Convert to fraction form
    82,265.76/123,383.08 = 40,103.52/x
  3. Step 3: Cross multiply
    82,265.76x = 123,383.08 × 40,103.52
  4. Step 4: Simplify right side
    82,265.76x = 4,948,095,816.44
  5. Step 5: Solve for x
    x = 4,948,095,816.44/82,265.76
  6. Step 6: Final answer
    x = 60,147.69

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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.