Home / 86,872.88-130,306.62-27,712.10

Finding the Fourth Proportional to 86,872.88, 130,306.62 and 27,712.10

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Solution

The fourth proportional to 86,872.88, 130,306.62 and 27,712.10 is: 41,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,872.88 : 130,306.62 = 27,712.10 : x
  2. Step 2: Convert to fraction form
    86,872.88/130,306.62 = 27,712.10/x
  3. Step 3: Cross multiply
    86,872.88x = 130,306.62 × 27,712.10
  4. Step 4: Simplify right side
    86,872.88x = 3,611,070,084.10
  5. Step 5: Solve for x
    x = 3,611,070,084.10/86,872.88
  6. Step 6: Final answer
    x = 41,567.29

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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.