Home / 86,872.60-130,321.32-27,708.94

Finding the Fourth Proportional to 86,872.60, 130,321.32 and 27,708.94

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Solution

The fourth proportional to 86,872.60, 130,321.32 and 27,708.94 is: 41,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,872.60 : 130,321.32 = 27,708.94 : x
  2. Step 2: Convert to fraction form
    86,872.60/130,321.32 = 27,708.94/x
  3. Step 3: Cross multiply
    86,872.60x = 130,321.32 × 27,708.94
  4. Step 4: Simplify right side
    86,872.60x = 3,611,065,636.60
  5. Step 5: Solve for x
    x = 3,611,065,636.60/86,872.60
  6. Step 6: Final answer
    x = 41,567.37

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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.