Home / 80,520.66-120,717.47-50,876.01

Finding the Fourth Proportional to 80,520.66, 120,717.47 and 50,876.01

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Solution

The fourth proportional to 80,520.66, 120,717.47 and 50,876.01 is: 76,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.66 : 120,717.47 = 50,876.01 : x
  2. Step 2: Convert to fraction form
    80,520.66/120,717.47 = 50,876.01/x
  3. Step 3: Cross multiply
    80,520.66x = 120,717.47 × 50,876.01
  4. Step 4: Simplify right side
    80,520.66x = 6,141,622,956.51
  5. Step 5: Solve for x
    x = 6,141,622,956.51/80,520.66
  6. Step 6: Final answer
    x = 76,273.88

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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.