Home / 87,180.96-120,321-49,467.36

Finding the Fourth Proportional to 87,180.96, 120,321 and 49,467.36

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Solution

The fourth proportional to 87,180.96, 120,321 and 49,467.36 is: 68,271.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,180.96 : 120,321 = 49,467.36 : x
  2. Step 2: Convert to fraction form
    87,180.96/120,321 = 49,467.36/x
  3. Step 3: Cross multiply
    87,180.96x = 120,321 × 49,467.36
  4. Step 4: Simplify right side
    87,180.96x = 5,951,962,222.56
  5. Step 5: Solve for x
    x = 5,951,962,222.56/87,180.96
  6. Step 6: Final answer
    x = 68,271.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.