Home / 68,872.02-103,294.42-18,939.24

Finding the Fourth Proportional to 68,872.02, 103,294.42 and 18,939.24

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Solution

The fourth proportional to 68,872.02, 103,294.42 and 18,939.24 is: 28,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,872.02 : 103,294.42 = 18,939.24 : x
  2. Step 2: Convert to fraction form
    68,872.02/103,294.42 = 18,939.24/x
  3. Step 3: Cross multiply
    68,872.02x = 103,294.42 × 18,939.24
  4. Step 4: Simplify right side
    68,872.02x = 1,956,317,811.04
  5. Step 5: Solve for x
    x = 1,956,317,811.04/68,872.02
  6. Step 6: Final answer
    x = 28,405.12

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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.