Home / 275,126.10-412,748.57-85,582.86

Finding the Fourth Proportional to 275,126.10, 412,748.57 and 85,582.86

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Solution

The fourth proportional to 275,126.10, 412,748.57 and 85,582.86 is: 128,392.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,126.10 : 412,748.57 = 85,582.86 : x
  2. Step 2: Convert to fraction form
    275,126.10/412,748.57 = 85,582.86/x
  3. Step 3: Cross multiply
    275,126.10x = 412,748.57 × 85,582.86
  4. Step 4: Simplify right side
    275,126.10x = 35,324,202,653.60
  5. Step 5: Solve for x
    x = 35,324,202,653.60/275,126.10
  6. Step 6: Final answer
    x = 128,392.77

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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.