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Finding the Fourth Proportional to 51,191.88, 76,738.50 and 26,243.64

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Solution

The fourth proportional to 51,191.88, 76,738.50 and 26,243.64 is: 39,340.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,191.88 : 76,738.50 = 26,243.64 : x
  2. Step 2: Convert to fraction form
    51,191.88/76,738.50 = 26,243.64/x
  3. Step 3: Cross multiply
    51,191.88x = 76,738.50 × 26,243.64
  4. Step 4: Simplify right side
    51,191.88x = 2,013,897,568.14
  5. Step 5: Solve for x
    x = 2,013,897,568.14/51,191.88
  6. Step 6: Final answer
    x = 39,340.18

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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.