Home / 71,556.60-98,743.68-39,723.60

Finding the Fourth Proportional to 71,556.60, 98,743.68 and 39,723.60

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Solution

The fourth proportional to 71,556.60, 98,743.68 and 39,723.60 is: 54,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,556.60 : 98,743.68 = 39,723.60 : x
  2. Step 2: Convert to fraction form
    71,556.60/98,743.68 = 39,723.60/x
  3. Step 3: Cross multiply
    71,556.60x = 98,743.68 × 39,723.60
  4. Step 4: Simplify right side
    71,556.60x = 3,922,454,446.85
  5. Step 5: Solve for x
    x = 3,922,454,446.85/71,556.60
  6. Step 6: Final answer
    x = 54,816.11

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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.