Home / 81,412.17-122,135.73-25,251.09

Finding the Fourth Proportional to 81,412.17, 122,135.73 and 25,251.09

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Solution

The fourth proportional to 81,412.17, 122,135.73 and 25,251.09 is: 37,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,412.17 : 122,135.73 = 25,251.09 : x
  2. Step 2: Convert to fraction form
    81,412.17/122,135.73 = 25,251.09/x
  3. Step 3: Cross multiply
    81,412.17x = 122,135.73 × 25,251.09
  4. Step 4: Simplify right side
    81,412.17x = 3,084,060,310.45
  5. Step 5: Solve for x
    x = 3,084,060,310.45/81,412.17
  6. Step 6: Final answer
    x = 37,882.06

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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.