Home / 127,591.28-191,427.90-38,861.96

Finding the Fourth Proportional to 127,591.28, 191,427.90 and 38,861.96

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Solution

The fourth proportional to 127,591.28, 191,427.90 and 38,861.96 is: 58,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,591.28 : 191,427.90 = 38,861.96 : x
  2. Step 2: Convert to fraction form
    127,591.28/191,427.90 = 38,861.96/x
  3. Step 3: Cross multiply
    127,591.28x = 191,427.90 × 38,861.96
  4. Step 4: Simplify right side
    127,591.28x = 7,439,263,392.68
  5. Step 5: Solve for x
    x = 7,439,263,392.68/127,591.28
  6. Step 6: Final answer
    x = 58,305.42

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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.