Home / 47,122.38-65,044.04-30,172.28

Finding the Fourth Proportional to 47,122.38, 65,044.04 and 30,172.28

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Solution

The fourth proportional to 47,122.38, 65,044.04 and 30,172.28 is: 41,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,122.38 : 65,044.04 = 30,172.28 : x
  2. Step 2: Convert to fraction form
    47,122.38/65,044.04 = 30,172.28/x
  3. Step 3: Cross multiply
    47,122.38x = 65,044.04 × 30,172.28
  4. Step 4: Simplify right side
    47,122.38x = 1,962,526,511.13
  5. Step 5: Solve for x
    x = 1,962,526,511.13/47,122.38
  6. Step 6: Final answer
    x = 41,647.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.