Home / 66,847.38-92,249.39-39,991.02

Finding the Fourth Proportional to 66,847.38, 92,249.39 and 39,991.02

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Solution

The fourth proportional to 66,847.38, 92,249.39 and 39,991.02 is: 55,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,847.38 : 92,249.39 = 39,991.02 : x
  2. Step 2: Convert to fraction form
    66,847.38/92,249.39 = 39,991.02/x
  3. Step 3: Cross multiply
    66,847.38x = 92,249.39 × 39,991.02
  4. Step 4: Simplify right side
    66,847.38x = 3,689,147,200.48
  5. Step 5: Solve for x
    x = 3,689,147,200.48/66,847.38
  6. Step 6: Final answer
    x = 55,187.61

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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.