Home / 72,150.22-108,249.32-45,465.37

Finding the Fourth Proportional to 72,150.22, 108,249.32 and 45,465.37

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Solution

The fourth proportional to 72,150.22, 108,249.32 and 45,465.37 is: 68,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,150.22 : 108,249.32 = 45,465.37 : x
  2. Step 2: Convert to fraction form
    72,150.22/108,249.32 = 45,465.37/x
  3. Step 3: Cross multiply
    72,150.22x = 108,249.32 × 45,465.37
  4. Step 4: Simplify right side
    72,150.22x = 4,921,595,158.72
  5. Step 5: Solve for x
    x = 4,921,595,158.72/72,150.22
  6. Step 6: Final answer
    x = 68,213.17

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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.