Home / 68,808.26-103,212.30-45,429.14

Finding the Fourth Proportional to 68,808.26, 103,212.30 and 45,429.14

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Solution

The fourth proportional to 68,808.26, 103,212.30 and 45,429.14 is: 68,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808.26 : 103,212.30 = 45,429.14 : x
  2. Step 2: Convert to fraction form
    68,808.26/103,212.30 = 45,429.14/x
  3. Step 3: Cross multiply
    68,808.26x = 103,212.30 × 45,429.14
  4. Step 4: Simplify right side
    68,808.26x = 4,688,846,026.42
  5. Step 5: Solve for x
    x = 4,688,846,026.42/68,808.26
  6. Step 6: Final answer
    x = 68,143.65

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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.