Home / 45,899.14-68,835.50-12,620.30

Finding the Fourth Proportional to 45,899.14, 68,835.50 and 12,620.30

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Solution

The fourth proportional to 45,899.14, 68,835.50 and 12,620.30 is: 18,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,899.14 : 68,835.50 = 12,620.30 : x
  2. Step 2: Convert to fraction form
    45,899.14/68,835.50 = 12,620.30/x
  3. Step 3: Cross multiply
    45,899.14x = 68,835.50 × 12,620.30
  4. Step 4: Simplify right side
    45,899.14x = 868,724,660.65
  5. Step 5: Solve for x
    x = 868,724,660.65/45,899.14
  6. Step 6: Final answer
    x = 18,926.82

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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.