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Finding the Fourth Proportional to 72,571.32, 108,824.16 and 25,825.44

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Solution

The fourth proportional to 72,571.32, 108,824.16 and 25,825.44 is: 38,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,571.32 : 108,824.16 = 25,825.44 : x
  2. Step 2: Convert to fraction form
    72,571.32/108,824.16 = 25,825.44/x
  3. Step 3: Cross multiply
    72,571.32x = 108,824.16 × 25,825.44
  4. Step 4: Simplify right side
    72,571.32x = 2,810,431,814.63
  5. Step 5: Solve for x
    x = 2,810,431,814.63/72,571.32
  6. Step 6: Final answer
    x = 38,726.48

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1.5x scale

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.