Home / 81,234.51-121,843.68-25,059.39

Finding the Fourth Proportional to 81,234.51, 121,843.68 and 25,059.39

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Solution

The fourth proportional to 81,234.51, 121,843.68 and 25,059.39 is: 37,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,234.51 : 121,843.68 = 25,059.39 : x
  2. Step 2: Convert to fraction form
    81,234.51/121,843.68 = 25,059.39/x
  3. Step 3: Cross multiply
    81,234.51x = 121,843.68 × 25,059.39
  4. Step 4: Simplify right side
    81,234.51x = 3,053,328,296.16
  5. Step 5: Solve for x
    x = 3,053,328,296.16/81,234.51
  6. Step 6: Final answer
    x = 37,586.59

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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.