Home / 72,669.96-108,939.26-25,911.90

Finding the Fourth Proportional to 72,669.96, 108,939.26 and 25,911.90

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Solution

The fourth proportional to 72,669.96, 108,939.26 and 25,911.90 is: 38,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,669.96 : 108,939.26 = 25,911.90 : x
  2. Step 2: Convert to fraction form
    72,669.96/108,939.26 = 25,911.90/x
  3. Step 3: Cross multiply
    72,669.96x = 108,939.26 × 25,911.90
  4. Step 4: Simplify right side
    72,669.96x = 2,822,823,275.97
  5. Step 5: Solve for x
    x = 2,822,823,275.97/72,669.96
  6. Step 6: Final answer
    x = 38,844.43

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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.