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Finding the Fourth Proportional to 72,017.80, 107,994.30 and 27,629.80

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Solution

The fourth proportional to 72,017.80, 107,994.30 and 27,629.80 is: 41,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,017.80 : 107,994.30 = 27,629.80 : x
  2. Step 2: Convert to fraction form
    72,017.80/107,994.30 = 27,629.80/x
  3. Step 3: Cross multiply
    72,017.80x = 107,994.30 × 27,629.80
  4. Step 4: Simplify right side
    72,017.80x = 2,983,860,910.14
  5. Step 5: Solve for x
    x = 2,983,860,910.14/72,017.80
  6. Step 6: Final answer
    x = 41,432.27

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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.