Home / 55,142.40-82,584.32-40,313.92

Finding the Fourth Proportional to 55,142.40, 82,584.32 and 40,313.92

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Solution

The fourth proportional to 55,142.40, 82,584.32 and 40,313.92 is: 60,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,142.40 : 82,584.32 = 40,313.92 : x
  2. Step 2: Convert to fraction form
    55,142.40/82,584.32 = 40,313.92/x
  3. Step 3: Cross multiply
    55,142.40x = 82,584.32 × 40,313.92
  4. Step 4: Simplify right side
    55,142.40x = 3,329,297,669.73
  5. Step 5: Solve for x
    x = 3,329,297,669.73/55,142.40
  6. Step 6: Final answer
    x = 60,376.37

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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.