Home / 72,540.23-108,744.66-25,782.17

Finding the Fourth Proportional to 72,540.23, 108,744.66 and 25,782.17

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Solution

The fourth proportional to 72,540.23, 108,744.66 and 25,782.17 is: 38,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,540.23 : 108,744.66 = 25,782.17 : x
  2. Step 2: Convert to fraction form
    72,540.23/108,744.66 = 25,782.17/x
  3. Step 3: Cross multiply
    72,540.23x = 108,744.66 × 25,782.17
  4. Step 4: Simplify right side
    72,540.23x = 2,803,672,766.99
  5. Step 5: Solve for x
    x = 2,803,672,766.99/72,540.23
  6. Step 6: Final answer
    x = 38,649.90

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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.