Home / 92,579.76-127,664.52-79,195.32

Finding the Fourth Proportional to 92,579.76, 127,664.52 and 79,195.32

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Solution

The fourth proportional to 92,579.76, 127,664.52 and 79,195.32 is: 109,207.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.76 : 127,664.52 = 79,195.32 : x
  2. Step 2: Convert to fraction form
    92,579.76/127,664.52 = 79,195.32/x
  3. Step 3: Cross multiply
    92,579.76x = 127,664.52 × 79,195.32
  4. Step 4: Simplify right side
    92,579.76x = 10,110,432,514.05
  5. Step 5: Solve for x
    x = 10,110,432,514.05/92,579.76
  6. Step 6: Final answer
    x = 109,207.81

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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.