Home / 55,122.40-82,617.96-38,391.88

Finding the Fourth Proportional to 55,122.40, 82,617.96 and 38,391.88

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Solution

The fourth proportional to 55,122.40, 82,617.96 and 38,391.88 is: 57,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,122.40 : 82,617.96 = 38,391.88 : x
  2. Step 2: Convert to fraction form
    55,122.40/82,617.96 = 38,391.88/x
  3. Step 3: Cross multiply
    55,122.40x = 82,617.96 × 38,391.88
  4. Step 4: Simplify right side
    55,122.40x = 3,171,858,806.16
  5. Step 5: Solve for x
    x = 3,171,858,806.16/55,122.40
  6. Step 6: Final answer
    x = 57,542.10

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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.