Home / 80,953.68-111,716.57-45,145.96

Finding the Fourth Proportional to 80,953.68, 111,716.57 and 45,145.96

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Solution

The fourth proportional to 80,953.68, 111,716.57 and 45,145.96 is: 62,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.68 : 111,716.57 = 45,145.96 : x
  2. Step 2: Convert to fraction form
    80,953.68/111,716.57 = 45,145.96/x
  3. Step 3: Cross multiply
    80,953.68x = 111,716.57 × 45,145.96
  4. Step 4: Simplify right side
    80,953.68x = 5,043,551,800.56
  5. Step 5: Solve for x
    x = 5,043,551,800.56/80,953.68
  6. Step 6: Final answer
    x = 62,301.70

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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.