Home / 87,113.43-130,679.87-27,928.35

Finding the Fourth Proportional to 87,113.43, 130,679.87 and 27,928.35

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Solution

The fourth proportional to 87,113.43, 130,679.87 and 27,928.35 is: 41,895.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.43 : 130,679.87 = 27,928.35 : x
  2. Step 2: Convert to fraction form
    87,113.43/130,679.87 = 27,928.35/x
  3. Step 3: Cross multiply
    87,113.43x = 130,679.87 × 27,928.35
  4. Step 4: Simplify right side
    87,113.43x = 3,649,673,147.31
  5. Step 5: Solve for x
    x = 3,649,673,147.31/87,113.43
  6. Step 6: Final answer
    x = 41,895.64

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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.