Home / 80,057.24-120,105.56-56,410.97

Finding the Fourth Proportional to 80,057.24, 120,105.56 and 56,410.97

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Solution

The fourth proportional to 80,057.24, 120,105.56 and 56,410.97 is: 84,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,057.24 : 120,105.56 = 56,410.97 : x
  2. Step 2: Convert to fraction form
    80,057.24/120,105.56 = 56,410.97/x
  3. Step 3: Cross multiply
    80,057.24x = 120,105.56 × 56,410.97
  4. Step 4: Simplify right side
    80,057.24x = 6,775,271,141.99
  5. Step 5: Solve for x
    x = 6,775,271,141.99/80,057.24
  6. Step 6: Final answer
    x = 84,630.34

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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.