Home / 78,869.20-118,388.04-43,799.44

Finding the Fourth Proportional to 78,869.20, 118,388.04 and 43,799.44

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Solution

The fourth proportional to 78,869.20, 118,388.04 and 43,799.44 is: 65,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.20 : 118,388.04 = 43,799.44 : x
  2. Step 2: Convert to fraction form
    78,869.20/118,388.04 = 43,799.44/x
  3. Step 3: Cross multiply
    78,869.20x = 118,388.04 × 43,799.44
  4. Step 4: Simplify right side
    78,869.20x = 5,185,329,854.70
  5. Step 5: Solve for x
    x = 5,185,329,854.70/78,869.20
  6. Step 6: Final answer
    x = 65,745.94

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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.