Home / 68,772.07-103,138.11-26,642.76

Finding the Fourth Proportional to 68,772.07, 103,138.11 and 26,642.76

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Solution

The fourth proportional to 68,772.07, 103,138.11 and 26,642.76 is: 39,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,772.07 : 103,138.11 = 26,642.76 : x
  2. Step 2: Convert to fraction form
    68,772.07/103,138.11 = 26,642.76/x
  3. Step 3: Cross multiply
    68,772.07x = 103,138.11 × 26,642.76
  4. Step 4: Simplify right side
    68,772.07x = 2,747,883,524.82
  5. Step 5: Solve for x
    x = 2,747,883,524.82/68,772.07
  6. Step 6: Final answer
    x = 39,956.39

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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.