Home / 68,610.12-102,808.90-47,591.04

Finding the Fourth Proportional to 68,610.12, 102,808.90 and 47,591.04

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Solution

The fourth proportional to 68,610.12, 102,808.90 and 47,591.04 is: 71,312.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,610.12 : 102,808.90 = 47,591.04 : x
  2. Step 2: Convert to fraction form
    68,610.12/102,808.90 = 47,591.04/x
  3. Step 3: Cross multiply
    68,610.12x = 102,808.90 × 47,591.04
  4. Step 4: Simplify right side
    68,610.12x = 4,892,782,472.26
  5. Step 5: Solve for x
    x = 4,892,782,472.26/68,610.12
  6. Step 6: Final answer
    x = 71,312.84

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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.