Home / 279,986.24-419,981.03-69,624.18

Finding the Fourth Proportional to 279,986.24, 419,981.03 and 69,624.18

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Solution

The fourth proportional to 279,986.24, 419,981.03 and 69,624.18 is: 104,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,986.24 : 419,981.03 = 69,624.18 : x
  2. Step 2: Convert to fraction form
    279,986.24/419,981.03 = 69,624.18/x
  3. Step 3: Cross multiply
    279,986.24x = 419,981.03 × 69,624.18
  4. Step 4: Simplify right side
    279,986.24x = 29,240,834,742.28
  5. Step 5: Solve for x
    x = 29,240,834,742.28/279,986.24
  6. Step 6: Final answer
    x = 104,436.68

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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.