Home / 68,520.20-102,809.10-37,377.80

Finding the Fourth Proportional to 68,520.20, 102,809.10 and 37,377.80

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Solution

The fourth proportional to 68,520.20, 102,809.10 and 37,377.80 is: 56,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.20 : 102,809.10 = 37,377.80 : x
  2. Step 2: Convert to fraction form
    68,520.20/102,809.10 = 37,377.80/x
  3. Step 3: Cross multiply
    68,520.20x = 102,809.10 × 37,377.80
  4. Step 4: Simplify right side
    68,520.20x = 3,842,777,977.98
  5. Step 5: Solve for x
    x = 3,842,777,977.98/68,520.20
  6. Step 6: Final answer
    x = 56,082.41

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1.5x scale

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.