Home / 49,910.40-68,889.60-28,692

Finding the Fourth Proportional to 49,910.40, 68,889.60 and 28,692

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Solution

The fourth proportional to 49,910.40, 68,889.60 and 28,692 is: 39,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.40 : 68,889.60 = 28,692 : x
  2. Step 2: Convert to fraction form
    49,910.40/68,889.60 = 28,692/x
  3. Step 3: Cross multiply
    49,910.40x = 68,889.60 × 28,692
  4. Step 4: Simplify right side
    49,910.40x = 1,976,580,403.20
  5. Step 5: Solve for x
    x = 1,976,580,403.20/49,910.40
  6. Step 6: Final answer
    x = 39,602.58

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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.