Home / 86,789.19-130,148.25-27,608.97

Finding the Fourth Proportional to 86,789.19, 130,148.25 and 27,608.97

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Solution

The fourth proportional to 86,789.19, 130,148.25 and 27,608.97 is: 41,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,789.19 : 130,148.25 = 27,608.97 : x
  2. Step 2: Convert to fraction form
    86,789.19/130,148.25 = 27,608.97/x
  3. Step 3: Cross multiply
    86,789.19x = 130,148.25 × 27,608.97
  4. Step 4: Simplify right side
    86,789.19x = 3,593,259,129.80
  5. Step 5: Solve for x
    x = 3,593,259,129.80/86,789.19
  6. Step 6: Final answer
    x = 41,402.15

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1.5x scale

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.