Home / 82,406.78-123,569.23-26,239.55

Finding the Fourth Proportional to 82,406.78, 123,569.23 and 26,239.55

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Solution

The fourth proportional to 82,406.78, 123,569.23 and 26,239.55 is: 39,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,406.78 : 123,569.23 = 26,239.55 : x
  2. Step 2: Convert to fraction form
    82,406.78/123,569.23 = 26,239.55/x
  3. Step 3: Cross multiply
    82,406.78x = 123,569.23 × 26,239.55
  4. Step 4: Simplify right side
    82,406.78x = 3,242,400,857.85
  5. Step 5: Solve for x
    x = 3,242,400,857.85/82,406.78
  6. Step 6: Final answer
    x = 39,346.29

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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.