Home / 80,942.46-121,424.01-43,451.10

Finding the Fourth Proportional to 80,942.46, 121,424.01 and 43,451.10

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Solution

The fourth proportional to 80,942.46, 121,424.01 and 43,451.10 is: 65,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942.46 : 121,424.01 = 43,451.10 : x
  2. Step 2: Convert to fraction form
    80,942.46/121,424.01 = 43,451.10/x
  3. Step 3: Cross multiply
    80,942.46x = 121,424.01 × 43,451.10
  4. Step 4: Simplify right side
    80,942.46x = 5,276,006,800.91
  5. Step 5: Solve for x
    x = 5,276,006,800.91/80,942.46
  6. Step 6: Final answer
    x = 65,182.19

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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.