Home / 72,581.20-108,884.54-33,142.30

Finding the Fourth Proportional to 72,581.20, 108,884.54 and 33,142.30

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Solution

The fourth proportional to 72,581.20, 108,884.54 and 33,142.30 is: 49,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.20 : 108,884.54 = 33,142.30 : x
  2. Step 2: Convert to fraction form
    72,581.20/108,884.54 = 33,142.30/x
  3. Step 3: Cross multiply
    72,581.20x = 108,884.54 × 33,142.30
  4. Step 4: Simplify right side
    72,581.20x = 3,608,684,090.04
  5. Step 5: Solve for x
    x = 3,608,684,090.04/72,581.20
  6. Step 6: Final answer
    x = 49,719.27

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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.