Home / 45,516.72-68,274.96-12,236.78

Finding the Fourth Proportional to 45,516.72, 68,274.96 and 12,236.78

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Solution

The fourth proportional to 45,516.72, 68,274.96 and 12,236.78 is: 18,355.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,516.72 : 68,274.96 = 12,236.78 : x
  2. Step 2: Convert to fraction form
    45,516.72/68,274.96 = 12,236.78/x
  3. Step 3: Cross multiply
    45,516.72x = 68,274.96 × 12,236.78
  4. Step 4: Simplify right side
    45,516.72x = 835,465,835.72
  5. Step 5: Solve for x
    x = 835,465,835.72/45,516.72
  6. Step 6: Final answer
    x = 18,355.14

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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.