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Finding the Fourth Proportional to 81,779.96, 122,644.02 and 26,363

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Solution

The fourth proportional to 81,779.96, 122,644.02 and 26,363 is: 39,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,779.96 : 122,644.02 = 26,363 : x
  2. Step 2: Convert to fraction form
    81,779.96/122,644.02 = 26,363/x
  3. Step 3: Cross multiply
    81,779.96x = 122,644.02 × 26,363
  4. Step 4: Simplify right side
    81,779.96x = 3,233,264,299.26
  5. Step 5: Solve for x
    x = 3,233,264,299.26/81,779.96
  6. Step 6: Final answer
    x = 39,536.14

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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.