Home / 91,865.58-126,771.21-51,581.04

Finding the Fourth Proportional to 91,865.58, 126,771.21 and 51,581.04

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Solution

The fourth proportional to 91,865.58, 126,771.21 and 51,581.04 is: 71,179.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,865.58 : 126,771.21 = 51,581.04 : x
  2. Step 2: Convert to fraction form
    91,865.58/126,771.21 = 51,581.04/x
  3. Step 3: Cross multiply
    91,865.58x = 126,771.21 × 51,581.04
  4. Step 4: Simplify right side
    91,865.58x = 6,538,991,130.89
  5. Step 5: Solve for x
    x = 6,538,991,130.89/91,865.58
  6. Step 6: Final answer
    x = 71,179.99

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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.