Home / 86,789.09-130,182.28-27,623.90

Finding the Fourth Proportional to 86,789.09, 130,182.28 and 27,623.90

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Solution

The fourth proportional to 86,789.09, 130,182.28 and 27,623.90 is: 41,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.09 : 130,182.28 = 27,623.90 : x
  2. Step 2: Convert to fraction form
    86,789.09/130,182.28 = 27,623.90/x
  3. Step 3: Cross multiply
    86,789.09x = 130,182.28 × 27,623.90
  4. Step 4: Simplify right side
    86,789.09x = 3,596,142,540.89
  5. Step 5: Solve for x
    x = 3,596,142,540.89/86,789.09
  6. Step 6: Final answer
    x = 41,435.42

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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.