Home / 72,324.87-108,504.63-30,181.51

Finding the Fourth Proportional to 72,324.87, 108,504.63 and 30,181.51

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Solution

The fourth proportional to 72,324.87, 108,504.63 and 30,181.51 is: 45,279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324.87 : 108,504.63 = 30,181.51 : x
  2. Step 2: Convert to fraction form
    72,324.87/108,504.63 = 30,181.51/x
  3. Step 3: Cross multiply
    72,324.87x = 108,504.63 × 30,181.51
  4. Step 4: Simplify right side
    72,324.87x = 3,274,833,711.02
  5. Step 5: Solve for x
    x = 3,274,833,711.02/72,324.87
  6. Step 6: Final answer
    x = 45,279.49

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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.