Home / 55,399.96-83,097.18-20,336.86

Finding the Fourth Proportional to 55,399.96, 83,097.18 and 20,336.86

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Solution

The fourth proportional to 55,399.96, 83,097.18 and 20,336.86 is: 30,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,399.96 : 83,097.18 = 20,336.86 : x
  2. Step 2: Convert to fraction form
    55,399.96/83,097.18 = 20,336.86/x
  3. Step 3: Cross multiply
    55,399.96x = 83,097.18 × 20,336.86
  4. Step 4: Simplify right side
    55,399.96x = 1,689,935,716.05
  5. Step 5: Solve for x
    x = 1,689,935,716.05/55,399.96
  6. Step 6: Final answer
    x = 30,504.28

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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.