Home / 78,933.47-108,930.33-47,120.84

Finding the Fourth Proportional to 78,933.47, 108,930.33 and 47,120.84

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Solution

The fourth proportional to 78,933.47, 108,930.33 and 47,120.84 is: 65,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,933.47 : 108,930.33 = 47,120.84 : x
  2. Step 2: Convert to fraction form
    78,933.47/108,930.33 = 47,120.84/x
  3. Step 3: Cross multiply
    78,933.47x = 108,930.33 × 47,120.84
  4. Step 4: Simplify right side
    78,933.47x = 5,132,888,651.08
  5. Step 5: Solve for x
    x = 5,132,888,651.08/78,933.47
  6. Step 6: Final answer
    x = 65,028.04

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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.