Home / 279,675.18-419,517.02-69,313.32

Finding the Fourth Proportional to 279,675.18, 419,517.02 and 69,313.32

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Solution

The fourth proportional to 279,675.18, 419,517.02 and 69,313.32 is: 103,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,675.18 : 419,517.02 = 69,313.32 : x
  2. Step 2: Convert to fraction form
    279,675.18/419,517.02 = 69,313.32/x
  3. Step 3: Cross multiply
    279,675.18x = 419,517.02 × 69,313.32
  4. Step 4: Simplify right side
    279,675.18x = 29,078,117,625.99
  5. Step 5: Solve for x
    x = 29,078,117,625.99/279,675.18
  6. Step 6: Final answer
    x = 103,971.03

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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.