Home / 86,939.52-130,360.32-27,761.28

Finding the Fourth Proportional to 86,939.52, 130,360.32 and 27,761.28

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Solution

The fourth proportional to 86,939.52, 130,360.32 and 27,761.28 is: 41,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.52 : 130,360.32 = 27,761.28 : x
  2. Step 2: Convert to fraction form
    86,939.52/130,360.32 = 27,761.28/x
  3. Step 3: Cross multiply
    86,939.52x = 130,360.32 × 27,761.28
  4. Step 4: Simplify right side
    86,939.52x = 3,618,969,344.41
  5. Step 5: Solve for x
    x = 3,618,969,344.41/86,939.52
  6. Step 6: Final answer
    x = 41,626.29

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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.