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Finding the Fourth Proportional to 66,922.60, 100,383.90 and 27,459.40

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Solution

The fourth proportional to 66,922.60, 100,383.90 and 27,459.40 is: 41,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,922.60 : 100,383.90 = 27,459.40 : x
  2. Step 2: Convert to fraction form
    66,922.60/100,383.90 = 27,459.40/x
  3. Step 3: Cross multiply
    66,922.60x = 100,383.90 × 27,459.40
  4. Step 4: Simplify right side
    66,922.60x = 2,756,481,663.66
  5. Step 5: Solve for x
    x = 2,756,481,663.66/66,922.60
  6. Step 6: Final answer
    x = 41,189.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.