Home / 86,645.44-129,972.78-27,485.82

Finding the Fourth Proportional to 86,645.44, 129,972.78 and 27,485.82

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Solution

The fourth proportional to 86,645.44, 129,972.78 and 27,485.82 is: 41,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.44 : 129,972.78 = 27,485.82 : x
  2. Step 2: Convert to fraction form
    86,645.44/129,972.78 = 27,485.82/x
  3. Step 3: Cross multiply
    86,645.44x = 129,972.78 × 27,485.82
  4. Step 4: Simplify right side
    86,645.44x = 3,572,408,435.98
  5. Step 5: Solve for x
    x = 3,572,408,435.98/86,645.44
  6. Step 6: Final answer
    x = 41,230.20

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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.