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Finding the Fourth Proportional to 79,998, 120,002.92 and 30,750

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Solution

The fourth proportional to 79,998, 120,002.92 and 30,750 is: 46,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,998 : 120,002.92 = 30,750 : x
  2. Step 2: Convert to fraction form
    79,998/120,002.92 = 30,750/x
  3. Step 3: Cross multiply
    79,998x = 120,002.92 × 30,750
  4. Step 4: Simplify right side
    79,998x = 3,690,089,790
  5. Step 5: Solve for x
    x = 3,690,089,790/79,998
  6. Step 6: Final answer
    x = 46,127.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.