Home / 91,608.57-126,435.33-54,812.70

Finding the Fourth Proportional to 91,608.57, 126,435.33 and 54,812.70

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Solution

The fourth proportional to 91,608.57, 126,435.33 and 54,812.70 is: 75,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,608.57 : 126,435.33 = 54,812.70 : x
  2. Step 2: Convert to fraction form
    91,608.57/126,435.33 = 54,812.70/x
  3. Step 3: Cross multiply
    91,608.57x = 126,435.33 × 54,812.70
  4. Step 4: Simplify right side
    91,608.57x = 6,930,261,812.69
  5. Step 5: Solve for x
    x = 6,930,261,812.69/91,608.57
  6. Step 6: Final answer
    x = 75,650.80

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1.5x scale

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.