Home / 68,520.10-102,758.26-21,762.04

Finding the Fourth Proportional to 68,520.10, 102,758.26 and 21,762.04

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Solution

The fourth proportional to 68,520.10, 102,758.26 and 21,762.04 is: 32,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.10 : 102,758.26 = 21,762.04 : x
  2. Step 2: Convert to fraction form
    68,520.10/102,758.26 = 21,762.04/x
  3. Step 3: Cross multiply
    68,520.10x = 102,758.26 × 21,762.04
  4. Step 4: Simplify right side
    68,520.10x = 2,236,229,364.45
  5. Step 5: Solve for x
    x = 2,236,229,364.45/68,520.10
  6. Step 6: Final answer
    x = 32,636.11

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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.