Home / 73,128.20-109,669.60-26,375

Finding the Fourth Proportional to 73,128.20, 109,669.60 and 26,375

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Solution

The fourth proportional to 73,128.20, 109,669.60 and 26,375 is: 39,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,128.20 : 109,669.60 = 26,375 : x
  2. Step 2: Convert to fraction form
    73,128.20/109,669.60 = 26,375/x
  3. Step 3: Cross multiply
    73,128.20x = 109,669.60 × 26,375
  4. Step 4: Simplify right side
    73,128.20x = 2,892,535,700
  5. Step 5: Solve for x
    x = 2,892,535,700/73,128.20
  6. Step 6: Final answer
    x = 39,554.31

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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.