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Finding the Fourth Proportional to 66,825.89, 100,238.80 and 26,844.87

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Solution

The fourth proportional to 66,825.89, 100,238.80 and 26,844.87 is: 40,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,825.89 : 100,238.80 = 26,844.87 : x
  2. Step 2: Convert to fraction form
    66,825.89/100,238.80 = 26,844.87/x
  3. Step 3: Cross multiply
    66,825.89x = 100,238.80 × 26,844.87
  4. Step 4: Simplify right side
    66,825.89x = 2,690,897,554.96
  5. Step 5: Solve for x
    x = 2,690,897,554.96/66,825.89
  6. Step 6: Final answer
    x = 40,267.29

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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.