Home / 86,272.62-129,422-27,102.73

Finding the Fourth Proportional to 86,272.62, 129,422 and 27,102.73

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Solution

The fourth proportional to 86,272.62, 129,422 and 27,102.73 is: 40,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,272.62 : 129,422 = 27,102.73 : x
  2. Step 2: Convert to fraction form
    86,272.62/129,422 = 27,102.73/x
  3. Step 3: Cross multiply
    86,272.62x = 129,422 × 27,102.73
  4. Step 4: Simplify right side
    86,272.62x = 3,507,689,522.06
  5. Step 5: Solve for x
    x = 3,507,689,522.06/86,272.62
  6. Step 6: Final answer
    x = 40,658.20

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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.