Home / 67,022.91-91,829.77-66,192.80

Finding the Fourth Proportional to 67,022.91, 91,829.77 and 66,192.80

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Solution

The fourth proportional to 67,022.91, 91,829.77 and 66,192.80 is: 90,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,022.91 : 91,829.77 = 66,192.80 : x
  2. Step 2: Convert to fraction form
    67,022.91/91,829.77 = 66,192.80/x
  3. Step 3: Cross multiply
    67,022.91x = 91,829.77 × 66,192.80
  4. Step 4: Simplify right side
    67,022.91x = 6,078,468,975.03
  5. Step 5: Solve for x
    x = 6,078,468,975.03/67,022.91
  6. Step 6: Final answer
    x = 90,692.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.