Home / 82,638.36-123,965.73-26,464.35

Finding the Fourth Proportional to 82,638.36, 123,965.73 and 26,464.35

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Solution

The fourth proportional to 82,638.36, 123,965.73 and 26,464.35 is: 39,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,638.36 : 123,965.73 = 26,464.35 : x
  2. Step 2: Convert to fraction form
    82,638.36/123,965.73 = 26,464.35/x
  3. Step 3: Cross multiply
    82,638.36x = 123,965.73 × 26,464.35
  4. Step 4: Simplify right side
    82,638.36x = 3,280,672,466.73
  5. Step 5: Solve for x
    x = 3,280,672,466.73/82,638.36
  6. Step 6: Final answer
    x = 39,699.15

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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.