Home / 91,416.43-126,161.13-51,133.96

Finding the Fourth Proportional to 91,416.43, 126,161.13 and 51,133.96

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Solution

The fourth proportional to 91,416.43, 126,161.13 and 51,133.96 is: 70,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,416.43 : 126,161.13 = 51,133.96 : x
  2. Step 2: Convert to fraction form
    91,416.43/126,161.13 = 51,133.96/x
  3. Step 3: Cross multiply
    91,416.43x = 126,161.13 × 51,133.96
  4. Step 4: Simplify right side
    91,416.43x = 6,451,118,174.97
  5. Step 5: Solve for x
    x = 6,451,118,174.97/91,416.43
  6. Step 6: Final answer
    x = 70,568.48

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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.