Home / 81,725.82-122,588.91-25,566.30

Finding the Fourth Proportional to 81,725.82, 122,588.91 and 25,566.30

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Solution

The fourth proportional to 81,725.82, 122,588.91 and 25,566.30 is: 38,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,725.82 : 122,588.91 = 25,566.30 : x
  2. Step 2: Convert to fraction form
    81,725.82/122,588.91 = 25,566.30/x
  3. Step 3: Cross multiply
    81,725.82x = 122,588.91 × 25,566.30
  4. Step 4: Simplify right side
    81,725.82x = 3,134,144,849.73
  5. Step 5: Solve for x
    x = 3,134,144,849.73/81,725.82
  6. Step 6: Final answer
    x = 38,349.51

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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.