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Finding the Fourth Proportional to 72,650.28, 108,949.14 and 25,893.84

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Solution

The fourth proportional to 72,650.28, 108,949.14 and 25,893.84 is: 38,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,650.28 : 108,949.14 = 25,893.84 : x
  2. Step 2: Convert to fraction form
    72,650.28/108,949.14 = 25,893.84/x
  3. Step 3: Cross multiply
    72,650.28x = 108,949.14 × 25,893.84
  4. Step 4: Simplify right side
    72,650.28x = 2,821,111,599.30
  5. Step 5: Solve for x
    x = 2,821,111,599.30/72,650.28
  6. Step 6: Final answer
    x = 38,831.39

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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.