Home / 55,121.87-82,617.18-38,391.32

Finding the Fourth Proportional to 55,121.87, 82,617.18 and 38,391.32

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Solution

The fourth proportional to 55,121.87, 82,617.18 and 38,391.32 is: 57,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,121.87 : 82,617.18 = 38,391.32 : x
  2. Step 2: Convert to fraction form
    55,121.87/82,617.18 = 38,391.32/x
  3. Step 3: Cross multiply
    55,121.87x = 82,617.18 × 38,391.32
  4. Step 4: Simplify right side
    55,121.87x = 3,171,782,181.79
  5. Step 5: Solve for x
    x = 3,171,782,181.79/55,121.87
  6. Step 6: Final answer
    x = 57,541.27

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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.