Home / 81,342.58-122,010.30-22,178.26

Finding the Fourth Proportional to 81,342.58, 122,010.30 and 22,178.26

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Solution

The fourth proportional to 81,342.58, 122,010.30 and 22,178.26 is: 33,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,342.58 : 122,010.30 = 22,178.26 : x
  2. Step 2: Convert to fraction form
    81,342.58/122,010.30 = 22,178.26/x
  3. Step 3: Cross multiply
    81,342.58x = 122,010.30 × 22,178.26
  4. Step 4: Simplify right side
    81,342.58x = 2,705,976,156.08
  5. Step 5: Solve for x
    x = 2,705,976,156.08/81,342.58
  6. Step 6: Final answer
    x = 33,266.42

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1.5x scale

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.