Home / 76,102.19-114,135.96-28,722.30

Finding the Fourth Proportional to 76,102.19, 114,135.96 and 28,722.30

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Solution

The fourth proportional to 76,102.19, 114,135.96 and 28,722.30 is: 43,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,102.19 : 114,135.96 = 28,722.30 : x
  2. Step 2: Convert to fraction form
    76,102.19/114,135.96 = 28,722.30/x
  3. Step 3: Cross multiply
    76,102.19x = 114,135.96 × 28,722.30
  4. Step 4: Simplify right side
    76,102.19x = 3,278,247,283.91
  5. Step 5: Solve for x
    x = 3,278,247,283.91/76,102.19
  6. Step 6: Final answer
    x = 43,076.91

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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.