Home / 279,987.24-419,982.53-69,625.18

Finding the Fourth Proportional to 279,987.24, 419,982.53 and 69,625.18

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Solution

The fourth proportional to 279,987.24, 419,982.53 and 69,625.18 is: 104,438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,987.24 : 419,982.53 = 69,625.18 : x
  2. Step 2: Convert to fraction form
    279,987.24/419,982.53 = 69,625.18/x
  3. Step 3: Cross multiply
    279,987.24x = 419,982.53 × 69,625.18
  4. Step 4: Simplify right side
    279,987.24x = 29,241,359,248.11
  5. Step 5: Solve for x
    x = 29,241,359,248.11/279,987.24
  6. Step 6: Final answer
    x = 104,438.19

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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.