Home / 279,577.54-419,380.15-79,927.34

Finding the Fourth Proportional to 279,577.54, 419,380.15 and 79,927.34

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Solution

The fourth proportional to 279,577.54, 419,380.15 and 79,927.34 is: 119,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,577.54 : 419,380.15 = 79,927.34 : x
  2. Step 2: Convert to fraction form
    279,577.54/419,380.15 = 79,927.34/x
  3. Step 3: Cross multiply
    279,577.54x = 419,380.15 × 79,927.34
  4. Step 4: Simplify right side
    279,577.54x = 33,519,939,838.30
  5. Step 5: Solve for x
    x = 33,519,939,838.30/279,577.54
  6. Step 6: Final answer
    x = 119,894.97

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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.