Home / 68,819.21-103,195.40-40,363.91

Finding the Fourth Proportional to 68,819.21, 103,195.40 and 40,363.91

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Solution

The fourth proportional to 68,819.21, 103,195.40 and 40,363.91 is: 60,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,819.21 : 103,195.40 = 40,363.91 : x
  2. Step 2: Convert to fraction form
    68,819.21/103,195.40 = 40,363.91/x
  3. Step 3: Cross multiply
    68,819.21x = 103,195.40 × 40,363.91
  4. Step 4: Simplify right side
    68,819.21x = 4,165,369,938.92
  5. Step 5: Solve for x
    x = 4,165,369,938.92/68,819.21
  6. Step 6: Final answer
    x = 60,526.27

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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.