Home / 72,021.38-108,172.11-58,704.14

Finding the Fourth Proportional to 72,021.38, 108,172.11 and 58,704.14

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Solution

The fourth proportional to 72,021.38, 108,172.11 and 58,704.14 is: 88,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,021.38 : 108,172.11 = 58,704.14 : x
  2. Step 2: Convert to fraction form
    72,021.38/108,172.11 = 58,704.14/x
  3. Step 3: Cross multiply
    72,021.38x = 108,172.11 × 58,704.14
  4. Step 4: Simplify right side
    72,021.38x = 6,350,150,689.54
  5. Step 5: Solve for x
    x = 6,350,150,689.54/72,021.38
  6. Step 6: Final answer
    x = 88,170.36

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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.