Home / 72,033.60-99,396.54-40,198.44

Finding the Fourth Proportional to 72,033.60, 99,396.54 and 40,198.44

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Solution

The fourth proportional to 72,033.60, 99,396.54 and 40,198.44 is: 55,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,033.60 : 99,396.54 = 40,198.44 : x
  2. Step 2: Convert to fraction form
    72,033.60/99,396.54 = 40,198.44/x
  3. Step 3: Cross multiply
    72,033.60x = 99,396.54 × 40,198.44
  4. Step 4: Simplify right side
    72,033.60x = 3,995,585,849.40
  5. Step 5: Solve for x
    x = 3,995,585,849.40/72,033.60
  6. Step 6: Final answer
    x = 55,468.36

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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.