Home / 78,822.20-118,233.30-49,273.40

Finding the Fourth Proportional to 78,822.20, 118,233.30 and 49,273.40

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Solution

The fourth proportional to 78,822.20, 118,233.30 and 49,273.40 is: 73,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.20 : 118,233.30 = 49,273.40 : x
  2. Step 2: Convert to fraction form
    78,822.20/118,233.30 = 49,273.40/x
  3. Step 3: Cross multiply
    78,822.20x = 118,233.30 × 49,273.40
  4. Step 4: Simplify right side
    78,822.20x = 5,825,756,684.22
  5. Step 5: Solve for x
    x = 5,825,756,684.22/78,822.20
  6. Step 6: Final answer
    x = 73,910.10

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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.