Home / 215,983.46-324,037.37-66,245.72

Finding the Fourth Proportional to 215,983.46, 324,037.37 and 66,245.72

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Solution

The fourth proportional to 215,983.46, 324,037.37 and 66,245.72 is: 99,387.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,983.46 : 324,037.37 = 66,245.72 : x
  2. Step 2: Convert to fraction form
    215,983.46/324,037.37 = 66,245.72/x
  3. Step 3: Cross multiply
    215,983.46x = 324,037.37 × 66,245.72
  4. Step 4: Simplify right side
    215,983.46x = 21,466,087,427.98
  5. Step 5: Solve for x
    x = 21,466,087,427.98/215,983.46
  6. Step 6: Final answer
    x = 99,387.64

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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.