Home / 68,246.42-102,369.89-20,861.33

Finding the Fourth Proportional to 68,246.42, 102,369.89 and 20,861.33

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Solution

The fourth proportional to 68,246.42, 102,369.89 and 20,861.33 is: 31,292.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,246.42 : 102,369.89 = 20,861.33 : x
  2. Step 2: Convert to fraction form
    68,246.42/102,369.89 = 20,861.33/x
  3. Step 3: Cross multiply
    68,246.42x = 102,369.89 × 20,861.33
  4. Step 4: Simplify right side
    68,246.42x = 2,135,572,202.82
  5. Step 5: Solve for x
    x = 2,135,572,202.82/68,246.42
  6. Step 6: Final answer
    x = 31,292.08

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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.