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Finding the Fourth Proportional to 51,408, 77,076.87 and 27,395.92

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Solution

The fourth proportional to 51,408, 77,076.87 and 27,395.92 is: 41,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,408 : 77,076.87 = 27,395.92 : x
  2. Step 2: Convert to fraction form
    51,408/77,076.87 = 27,395.92/x
  3. Step 3: Cross multiply
    51,408x = 77,076.87 × 27,395.92
  4. Step 4: Simplify right side
    51,408x = 2,111,591,757.98
  5. Step 5: Solve for x
    x = 2,111,591,757.98/51,408
  6. Step 6: Final answer
    x = 41,075.16

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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.