Home / 68,400.60-102,576.24-28,960.44

Finding the Fourth Proportional to 68,400.60, 102,576.24 and 28,960.44

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Solution

The fourth proportional to 68,400.60, 102,576.24 and 28,960.44 is: 43,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,400.60 : 102,576.24 = 28,960.44 : x
  2. Step 2: Convert to fraction form
    68,400.60/102,576.24 = 28,960.44/x
  3. Step 3: Cross multiply
    68,400.60x = 102,576.24 × 28,960.44
  4. Step 4: Simplify right side
    68,400.60x = 2,970,653,043.95
  5. Step 5: Solve for x
    x = 2,970,653,043.95/68,400.60
  6. Step 6: Final answer
    x = 43,430.22

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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.