Home / 91,434.50-126,173.66-51,141.28

Finding the Fourth Proportional to 91,434.50, 126,173.66 and 51,141.28

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Solution

The fourth proportional to 91,434.50, 126,173.66 and 51,141.28 is: 70,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,434.50 : 126,173.66 = 51,141.28 : x
  2. Step 2: Convert to fraction form
    91,434.50/126,173.66 = 51,141.28/x
  3. Step 3: Cross multiply
    91,434.50x = 126,173.66 × 51,141.28
  4. Step 4: Simplify right side
    91,434.50x = 6,452,682,474.68
  5. Step 5: Solve for x
    x = 6,452,682,474.68/91,434.50
  6. Step 6: Final answer
    x = 70,571.64

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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.