Home / 86,789.88-130,182.30-27,629.10

Finding the Fourth Proportional to 86,789.88, 130,182.30 and 27,629.10

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Solution

The fourth proportional to 86,789.88, 130,182.30 and 27,629.10 is: 41,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.88 : 130,182.30 = 27,629.10 : x
  2. Step 2: Convert to fraction form
    86,789.88/130,182.30 = 27,629.10/x
  3. Step 3: Cross multiply
    86,789.88x = 130,182.30 × 27,629.10
  4. Step 4: Simplify right side
    86,789.88x = 3,596,819,784.93
  5. Step 5: Solve for x
    x = 3,596,819,784.93/86,789.88
  6. Step 6: Final answer
    x = 41,442.85

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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.