Home / 68,315.29-102,465.23-18,399.04

Finding the Fourth Proportional to 68,315.29, 102,465.23 and 18,399.04

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Solution

The fourth proportional to 68,315.29, 102,465.23 and 18,399.04 is: 27,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.29 : 102,465.23 = 18,399.04 : x
  2. Step 2: Convert to fraction form
    68,315.29/102,465.23 = 18,399.04/x
  3. Step 3: Cross multiply
    68,315.29x = 102,465.23 × 18,399.04
  4. Step 4: Simplify right side
    68,315.29x = 1,885,261,353.05
  5. Step 5: Solve for x
    x = 1,885,261,353.05/68,315.29
  6. Step 6: Final answer
    x = 27,596.48

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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.