Home / 91,709.20-126,584.94-54,005.32

Finding the Fourth Proportional to 91,709.20, 126,584.94 and 54,005.32

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Solution

The fourth proportional to 91,709.20, 126,584.94 and 54,005.32 is: 74,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,709.20 : 126,584.94 = 54,005.32 : x
  2. Step 2: Convert to fraction form
    91,709.20/126,584.94 = 54,005.32/x
  3. Step 3: Cross multiply
    91,709.20x = 126,584.94 × 54,005.32
  4. Step 4: Simplify right side
    91,709.20x = 6,836,260,191.88
  5. Step 5: Solve for x
    x = 6,836,260,191.88/91,709.20
  6. Step 6: Final answer
    x = 74,542.80

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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.