Home / 66,090.09-91,201.85-35,874.75

Finding the Fourth Proportional to 66,090.09, 91,201.85 and 35,874.75

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Solution

The fourth proportional to 66,090.09, 91,201.85 and 35,874.75 is: 49,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.09 : 91,201.85 = 35,874.75 : x
  2. Step 2: Convert to fraction form
    66,090.09/91,201.85 = 35,874.75/x
  3. Step 3: Cross multiply
    66,090.09x = 91,201.85 × 35,874.75
  4. Step 4: Simplify right side
    66,090.09x = 3,271,843,388.91
  5. Step 5: Solve for x
    x = 3,271,843,388.91/66,090.09
  6. Step 6: Final answer
    x = 49,505.81

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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.