Home / 77,295.20-115,875.30-29,942.60

Finding the Fourth Proportional to 77,295.20, 115,875.30 and 29,942.60

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Solution

The fourth proportional to 77,295.20, 115,875.30 and 29,942.60 is: 44,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,295.20 : 115,875.30 = 29,942.60 : x
  2. Step 2: Convert to fraction form
    77,295.20/115,875.30 = 29,942.60/x
  3. Step 3: Cross multiply
    77,295.20x = 115,875.30 × 29,942.60
  4. Step 4: Simplify right side
    77,295.20x = 3,469,607,757.78
  5. Step 5: Solve for x
    x = 3,469,607,757.78/77,295.20
  6. Step 6: Final answer
    x = 44,887.75

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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.