Home / 87,179.20-120,303.66-49,460.56

Finding the Fourth Proportional to 87,179.20, 120,303.66 and 49,460.56

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Solution

The fourth proportional to 87,179.20, 120,303.66 and 49,460.56 is: 68,253.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.20 : 120,303.66 = 49,460.56 : x
  2. Step 2: Convert to fraction form
    87,179.20/120,303.66 = 49,460.56/x
  3. Step 3: Cross multiply
    87,179.20x = 120,303.66 × 49,460.56
  4. Step 4: Simplify right side
    87,179.20x = 5,950,286,393.65
  5. Step 5: Solve for x
    x = 5,950,286,393.65/87,179.20
  6. Step 6: Final answer
    x = 68,253.51

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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.