Home / 55,157.38-82,755.51-20,100.58

Finding the Fourth Proportional to 55,157.38, 82,755.51 and 20,100.58

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Solution

The fourth proportional to 55,157.38, 82,755.51 and 20,100.58 is: 30,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.38 : 82,755.51 = 20,100.58 : x
  2. Step 2: Convert to fraction form
    55,157.38/82,755.51 = 20,100.58/x
  3. Step 3: Cross multiply
    55,157.38x = 82,755.51 × 20,100.58
  4. Step 4: Simplify right side
    55,157.38x = 1,663,433,466.93
  5. Step 5: Solve for x
    x = 1,663,433,466.93/55,157.38
  6. Step 6: Final answer
    x = 30,157.95

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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.