Home / 91,414.18-126,172-55,596.68

Finding the Fourth Proportional to 91,414.18, 126,172 and 55,596.68

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Solution

The fourth proportional to 91,414.18, 126,172 and 55,596.68 is: 76,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,414.18 : 126,172 = 55,596.68 : x
  2. Step 2: Convert to fraction form
    91,414.18/126,172 = 55,596.68/x
  3. Step 3: Cross multiply
    91,414.18x = 126,172 × 55,596.68
  4. Step 4: Simplify right side
    91,414.18x = 7,014,744,308.96
  5. Step 5: Solve for x
    x = 7,014,744,308.96/91,414.18
  6. Step 6: Final answer
    x = 76,735.84

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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.