Home / 68,315.96-102,449.33-28,876.15

Finding the Fourth Proportional to 68,315.96, 102,449.33 and 28,876.15

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Solution

The fourth proportional to 68,315.96, 102,449.33 and 28,876.15 is: 43,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.96 : 102,449.33 = 28,876.15 : x
  2. Step 2: Convert to fraction form
    68,315.96/102,449.33 = 28,876.15/x
  3. Step 3: Cross multiply
    68,315.96x = 102,449.33 × 28,876.15
  4. Step 4: Simplify right side
    68,315.96x = 2,958,341,817.38
  5. Step 5: Solve for x
    x = 2,958,341,817.38/68,315.96
  6. Step 6: Final answer
    x = 43,303.82

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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.