Home / 87,112.40-130,680.12-27,928.40

Finding the Fourth Proportional to 87,112.40, 130,680.12 and 27,928.40

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Solution

The fourth proportional to 87,112.40, 130,680.12 and 27,928.40 is: 41,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,112.40 : 130,680.12 = 27,928.40 : x
  2. Step 2: Convert to fraction form
    87,112.40/130,680.12 = 27,928.40/x
  3. Step 3: Cross multiply
    87,112.40x = 130,680.12 × 27,928.40
  4. Step 4: Simplify right side
    87,112.40x = 3,649,686,663.41
  5. Step 5: Solve for x
    x = 3,649,686,663.41/87,112.40
  6. Step 6: Final answer
    x = 41,896.29

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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.