Home / 53,105.20-73,283.76-28,906.66

Finding the Fourth Proportional to 53,105.20, 73,283.76 and 28,906.66

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Solution

The fourth proportional to 53,105.20, 73,283.76 and 28,906.66 is: 39,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,105.20 : 73,283.76 = 28,906.66 : x
  2. Step 2: Convert to fraction form
    53,105.20/73,283.76 = 28,906.66/x
  3. Step 3: Cross multiply
    53,105.20x = 73,283.76 × 28,906.66
  4. Step 4: Simplify right side
    53,105.20x = 2,118,388,733.84
  5. Step 5: Solve for x
    x = 2,118,388,733.84/53,105.20
  6. Step 6: Final answer
    x = 39,890.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.