Home / 55,310.10-82,955.55-20,231.70

Finding the Fourth Proportional to 55,310.10, 82,955.55 and 20,231.70

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Solution

The fourth proportional to 55,310.10, 82,955.55 and 20,231.70 is: 30,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,310.10 : 82,955.55 = 20,231.70 : x
  2. Step 2: Convert to fraction form
    55,310.10/82,955.55 = 20,231.70/x
  3. Step 3: Cross multiply
    55,310.10x = 82,955.55 × 20,231.70
  4. Step 4: Simplify right side
    55,310.10x = 1,678,331,800.94
  5. Step 5: Solve for x
    x = 1,678,331,800.94/55,310.10
  6. Step 6: Final answer
    x = 30,344.04

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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.