Home / 87,478.72-131,107.26-55,876.64

Finding the Fourth Proportional to 87,478.72, 131,107.26 and 55,876.64

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Solution

The fourth proportional to 87,478.72, 131,107.26 and 55,876.64 is: 83,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,478.72 : 131,107.26 = 55,876.64 : x
  2. Step 2: Convert to fraction form
    87,478.72/131,107.26 = 55,876.64/x
  3. Step 3: Cross multiply
    87,478.72x = 131,107.26 × 55,876.64
  4. Step 4: Simplify right side
    87,478.72x = 7,325,833,168.41
  5. Step 5: Solve for x
    x = 7,325,833,168.41/87,478.72
  6. Step 6: Final answer
    x = 83,744.17

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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.