Home / 81,977.82-122,984.01-26,569.50

Finding the Fourth Proportional to 81,977.82, 122,984.01 and 26,569.50

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Solution

The fourth proportional to 81,977.82, 122,984.01 and 26,569.50 is: 39,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,977.82 : 122,984.01 = 26,569.50 : x
  2. Step 2: Convert to fraction form
    81,977.82/122,984.01 = 26,569.50/x
  3. Step 3: Cross multiply
    81,977.82x = 122,984.01 × 26,569.50
  4. Step 4: Simplify right side
    81,977.82x = 3,267,623,653.70
  5. Step 5: Solve for x
    x = 3,267,623,653.70/81,977.82
  6. Step 6: Final answer
    x = 39,859.85

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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.