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Finding the Fourth Proportional to 66,090.01, 91,201.75 and 35,874.68

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Solution

The fourth proportional to 66,090.01, 91,201.75 and 35,874.68 is: 49,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.01 : 91,201.75 = 35,874.68 : x
  2. Step 2: Convert to fraction form
    66,090.01/91,201.75 = 35,874.68/x
  3. Step 3: Cross multiply
    66,090.01x = 91,201.75 × 35,874.68
  4. Step 4: Simplify right side
    66,090.01x = 3,271,833,596.69
  5. Step 5: Solve for x
    x = 3,271,833,596.69/66,090.01
  6. Step 6: Final answer
    x = 49,505.72

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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.